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[$B1i=,LdBj(B] $B!JO@M}<0$N:n@.$H$+$C$3!'(B3.1[1] p.97$B!K(B
$B1i=,LdBj(B $B#1!J$+$C$3$r$O$:$9LdBj!K!!(B $B!'$B!J#1!K(B(((not X) or Y)==>X) and Z
$B!J#2!K(B(not (X or Y))==>(X and Z)

$B2rEz(B (1) (not X or Y==>X) and Z (2) not(X or Y)==>X and Z

$B1i=,LdBj!!#2!J$+$C$3$r2C$($kLdBj!K!'(B $B $B!J#1!K(Bnot X and Y or Z ==>X
$B!J#2!K(B(X ==> not X) and Y or Z

$B2rEz!!(B(1) ((((not X) and Y)or Z)==>X) (2) (((X==>(not X))and Y)or Z
$B!J0lHV30$N$+$C$3$O$"$C$F$b$J$/$F$b$h$$!K(B

$B1i=,LdBj!!#3!JJ8>O$N5-9f2=!K!'O$rO@M}<0$H$7$FI=$;!#(B
$B!J#1!K%"%-$O@V$$%I%l%9$,;w9g$&$,!"%+%:%[$O%T%s%/$N%I%l%9$,;w9g$&!#(B
$B!J#2!K$*JR$E$1$7$?$i%1!<%-$"$2$k!#$G$b$*JRIU$1$7$J$+$C$?$i%1!<%-$"$2$J$$!#(B

$B2rEz!!(B(1) X: $B%"%-$O@V$$%I%l%9$,;w9g$&!!!!(BY: $B%+%:%[$O%T%s%/$N%I%l%9$,;w9g$&(B
$B!!$H$*$/$H!"!!(BX and Y

(2) P: $B$*JRIU$1$9$k!!(BQ: $B%1!<%-$r$"$2$k!!$H$*$/$H!"(B
(P==>Q)and(not P==>not Q)


$B#47n#1#4F|!'(B (3.1[2]pp.98-100 ) $BO@M}<0$N??M}CM!J??M}CM$H$O!"??M}CM$NM?$(J}!"??M}CMI=(B

$B#47n#2#1F|!'??M}CM$N7W;;$NB3$-(B
$B<+J,$G??M}CMI=$N7W;;$r$7$F$_$k$3$H(B

[$B1i=,LdBj(B] $B#4(B($B??M}CM$N7W;;(B3/1[2]pp98-101$B!K!' $B$^$:(B v(X)=T, v(Y)=F, v(Z)=T $B$H$7$F!" $B#1!K!!(B(X or Y)==>notZ
$B#2!K!!(B(X==>notY) and Z
$B#3!K!!(BZ and X or notY
$B#4!K!!(BnotnotX and Y
$B#5!K!!(BX or Y and Z

$B2rEz!!:G=i$N??M}CM$NM?$(J}$K$h$k!'!!#1!K(B v(X or Y)=T, v(not Z)=F, v((X or Y)==>not Z)=F
2) T 3) T 4) F 5) T
$B8e$N??M}CM$K$h$k!'(B 1) F; 2) v(X==> not Y) =T, v((X ==> not Y) and Z) = T
3) F; 4) F; 5) T


$B??M}CM7W;;$NNc(B
(X$B"K(BY$B!K"M"L(BZ $B$r(B C $B$H$*$/!#(Bv(X)=F, v(Y)=T,v(Z)=T$B$N$H$-$K!"(Bv(C)$B$r7W;;$9$k!#(B
$B$^$:(Bv(X$B"K(BY$B!K$O!"(Bv(Y)=T$B$h$j(BT$B!#(Bv$B!J"L(BZ$B!K$O(B v(Z)=T$B$h$j(BF.
X$B"K(BY $B$r(B A $B$H$*$-!""L(BZ $B$r(B B $B$H$*$/$H!"(BC $B$O(B A$B"M(BB $B$G$"$k!#(B
v(A)=T, V(B)=F $B$G$"$k$+$i!"??M}CMI=$K$h$j!"(Bv(A$B"M(BB)=F.

$B#47n#2#8F|$K$O!"=i$a$F$N2]Bj$r=P$7$^$9!#(B
$B2]Bj2rEz$NM-L5$G!"=P7g5-O?$KBe$($^$9!#(B
$B=i$a$F$J$N$G!":#2s$N$_!"#2;~8BL\$H#3;~8BL\$K2rEz$G$-$k$h$&$K$7$F$$$^$9!#(B
$B $B4JC1$JLdBj$r=P$7$^$9!# $BB?>/J#;($J2]Bj$OJLES=P$7$^$9!#$=$l$O$"$i$+$8$aCN$i$;$^$9!#(B
$B$J$*!"LdBj$O0lBj#1E@$G$9!#$?$^$K5Y$s$G$b!"$A$g$C$H<:GT$7$F$b(B
$B$9$0$K $B!V?P$b@Q$b$l$P;3$H$J$k!W$G$9$+$i!"Cm0U$7$F$/$@$5$$!#(B

$B#47n#2#8F|!'L?Bj#3!%#3(B(3.13.1[5]p103)$B$N@bL@!"1~MQ(B

$BL?Bj#3!$K v(not not A)=v(A)

not not A $B$N$h$&$KH]Dj$,Fs$DB3$/$3$H$r!VFs=EH]Dj!W$H$$$&!#(B
$B>e$NEy<0$,$J$j$?$D$3$H$r!VFs=EH]Dj$N=|5n!W$H$$$&!#(B

$BL?Bj#3!$N>ZL@$rFs$D<($9!#(B

v(A or B)=v(not(not A and not B)) $B$N>ZL@(B

v(A or B)=T$B!!$G$"$k$N$O!"(BA $B$+(B B $B$N>/$J$/$H$b0lJ}$,??(B(T)$B$N$H$-(B
v(not(not A and not B)) $B$,??$G$"$k$N$O!"(Bv(not A and not B)=F$B$N$H$-(B
$B$9$J$o$A(Bv(not A)=F$B!!$^$?$O(B v(not B)=F$B!#$3$l$O(Bv(A)=T $B$^$?$O(B v(B)=T
$B$9$J$o$A:8JU$H1&JU$,??$K$J$k$N$OF1CM$G$"$k!#(B

v(A$B"M(BB)=v($B"L(BA$B"K(BB) $B$N>ZL@(B
v(A)=F$B$"$k$$$O(Bv(B)=T$B$N$H$-!'(Bv($B"L(BA)=T. $B$f$($K(B
$B!V(Bv($B"L(BA)$B$H(Bv(B)$B$N>/$J$/$H$b0lJ}$O(BT$B!W(B. $B$7$?$,$C$F"K$N(B
$B??M}CM$NDj5A$K$h$j(Bv($B"L(BA$B"K(BB)=T.
v(A)=T$B$+$D(Bv(B)=F$B$N$H$-!'(Bv($B"L(BA)=F. $B$f$($K!"(B
$B!V(Bv($B"L(BA)$B$H(Bv(B)$B$N>/$J$/$H$b0lJ}$O(BT$B!W$,@.$jN)$?$J$$(B.
$B$7$?$,$C$F"K$N??M}CM$NDj5A$K$h$j(Bv($B"L(BA$B"K(BB)=F.
$B>e5-$N??M}CM$r(BA$B"M(BB$B$N??M}CMI=$HHf3S$7$F$_$l$P!"40A4$K(B
$B0lCW$9$k$3$H$,$o$+$k!#(B

$BL?Bj#3!$d#3!$N$h$&$K(Bv(D)=v(G)$B$NEy<0$,$J$j$?$D$H$-$K$O!"(B
D $B$H!!(BG $B$rCV$-49$($F$bO@M}<0$N??M}CM$OJQ$o$i$J$$!#(B

$BNc!'(Bv(A and (B=>C))=v(A and (not B or C))

$B??M}CM$K4X$9$kEy<0$K$D$$$F$O(B $B??M}CM$NEy<0(B$B$b;29M$K$7$F$/$@$5$$!#(B

$B0J>e0J30$K$b$h$/;H$o$l$k$$$/$D$+$NEy<0$,$"$j$^$9!#$?$H$($P(B
v$B!J(BA$B"M(BB$B!K!a(Bv$B!J"L(BB$B"M"L(BA$B!K!JBP6v!K!#(B
$B$7$+$7(Bv(A$B"M(BB)=T$B$G$b(Bv(B$B"M(BA)=F$B$N$3$H$,$"$k!#!J$=$N$h$&$J(Bv(A),v(B)$B$N(B
$BNc$r9M$($F$_$F$/$@$5$$!#!K$3$N8=>]$r!V5U$OI,$:$7$b??$J$i$:!W$H$$$&!#(B

$BGXM}K!$O!"BP6v$HFs=EH]Dj$N=|5n$H(Bde Morgan$B$NK!B'$r;H$&!#(B
$B$9$J$o$A!""L#A"M(BX$B"J"L(BX$B$,<($5$l$?$H$9$k(B($B$9$J$o$A!"(Bv($B"L#A"M(BX$B"J"L(BX)=T$B!K!#(B
$B!J(BA$B$NH]Dj$+$iL7=b$,@8$8$?!K(B
$BBP6v$K$h$j(B $B"L!J(BX$B"J"L(BX$B!K"M"L"L(BA$B!#(Bde Morgan$B$NK!B'$HFs=EH]Dj$N=|5n$K$h$j(B

$B"L(BX$B"K(BX$B"M(BA$B!#"L(BX$B"K(BX$B$OGSCfN'$G!"$D$M$K@.$jN)$D!JCM$,(BT$B!K$N$G!"(B
v($B"L(BX$B"K(BX$B"M(BA)=T=v(A). $B$f$($K!"(BA$B$,$?$@$7$$!#(B


[$B1i=,LdBj(B]3.1$BA4BN$K4X$9$kLdBj(B

$B1i=,LdBj!!#5!J??M}CM$K4X$9$kEy<0!K(B

$BL?Bj#3!$r;H$C$F!" (1) v(not A or not B)=v(not(A and B))
(2) v(not A => B)=v(A or B)
(3) v(not (A or B)) = v(not A and not B)
(4) v(not (A and B))=v(not A or not B)
(5) v($B"L(BA$B"K(BB$B"M(BC)=v((A$B"K(BC)$B"J(B($B"L(BB$B"K(BC))

$B2rEz!!(B(1) v(not A or not B) = v(not (not not A and not not B)=v(not(A and B))
(2) v(not A => B)=v(not not A or B) = v(A or B)
(3) v(not (A or B)) = v(not (not(not A and not B)))=
v(not not (not A and not B))=v(not A and not B)
(4)v(not (A and B))=v(not(not(not A or not B)))
=v(not not (not A or not B))=v(not A or not B)
(5) $B!JL?Bj#3!$*$h$S#3!$N%I!&%b%k%,%s$NK!B'!"J,G[N'$r;H$&!K(B
v($B"L(BA$B"K(BB$B"M(BC)=v($B"L(B($B"L(BA$B"K(BB)$B"K(BC)=v($B"L"L(BA$B"J"L(BB$B"K(BC)
=v(A$B"J"L(BB$B"K(BC)=v((A$B"K(BC)$B"J(B($B"L(BB$B"K(BC))


$B1i=,LdBj!!#6(B $B!JJ8>O$N$$$m$$$m$JI=8=$N;EJ}!K(B
$B $B!J#1!K(B $B%"%-$O@V$$%I%l%9$,;w9g$&$,!"%+%:%[$O%T%s%/$N%I%l%9$,;w9g$&!#(B

$B!J#2!K$*JR$E$1$7$?$i%1!<%-$"$2$k!#$G$b$*JRIU$1$7$J$+$C$?$i%1!<%-$"$2$J$$!#(B

$B2rEzNc(B (1) P$B"J(BR; $B$?$H$($P!"(Bv(P$B"J(BR)=v($B"L(B($B"L(BP$B"K"L(BR))
(2) (K$B"M(BC)$B"J(B($B"L(BK$B"M"L(BC); $B$?$H$($P!"(Bv((K$B"M(BC)$B"J(B($B"L(BK$B"M"L(BC))=
v((K$B"M(BC)$B"J(B($B"L"L(BK$B"K"L(BC))=v((K$B"M(BC)$B"J(B($B"L(BC$B"K"L"L(BK))=
v((K$B"M(BC)$B"J(B(C$B"M(BK))
$B:G8e$N<0$rJ8>O$KLa$9$H!"!V$*JR$E$1$7$?$i%1!<%-$r$"$2$k$7!"(B
$B%1!<%-$r$"$2$?$i$*JR$E$1$9$k!W$H$J$k!#(B
$B$J$s$@$+JQ!)(B

$B$b$C$HJQ$J$N$r65$($F$"$2$^$7$g$&!#(B
$B!V<8$i$l$J$$$HJY6/$7$J$$!W$C$F!"$h$/8@$o$l$k$3$H$G$9$h$M!#(B
Mary$B$O$[$s$H$K$3$NDL$j$N>/=w$J$N$G$9!#?F$O$$$D$b!"$3$&8@$C$F$$$^$9!#(B
$B$H$3$m$G?F$NH/8@$NBP6v$r$H$k$H!VJY6/$9$k$H<8$i$l$k!W$K$J$j$^$9!#(B
$B?F$NH/8@$,@5$7$1$l$P!"$=$NBP6v$b@5$7$$$O$:!#(BMary$B$,JY6/$7$J$$$N$O(B
$B $BO@M}E*$K@5$7$$$O$:$J$N$K!"$J$<$3$s$J$3$H$K$J$k$N$G$7$g$&!)(B
$B $B$A$g$C$H9M$($F$_$F$/$@$5$$!#(B


$B!VNc!W$H!VH?Nc!W$K$D$$$F(B

$BNc$N0UL#$O$o$+$k$H;W$$$^$9!#O@M}<0$NNc!J$?$H$($P(B A or not B=>C $B!K$H$+!"(B
v(A or not B=>C)=T $B$H$J$k$h$&$J(B A,B,C $B$N??M}CM$NAH$NNc!J$?$H$($P(B
v(A)=v(C)=T, v(B)=F $B!K!"$J$I$H$$$&$U$&$K;H$$$^$9$M!#(B
$BH?Nc$H$$$&$N$O2?$+$,$J$j$?$?$J$$Nc$N$3$H$G$9!#$7$?$,$C$F!VO@M}<0$NH?Nc!W(B
$B$H$O$$$$$^$;$s!#O@M}<0$G$J$$$b$N$OC1$KO@M}<0$N$D$b$j$G$^$A$,$C$?!"$H$$$&$@$1$G$9!#(B
v(A or not B=>C)=F $B$H$J$k$h$&$J(B A,B,C $B$N??M}CM$NAH$NNc(B $B$r(Bv(A or not B=>C)=T
$B$NH?Nc$H$$$$$^$9!#(B=T$B$H$J$i$J$$Nc$@$+$i$G$9!#$3$3$G$O$?$H$($P(Bv(A)=T, v(B)=F,v(C)=F
$B$,H?Nc$K$J$C$F$$$^$9!#(B


$B2]Bj#1!J#47n#2#8F|!K2rEz(B

$B!J#1!K!!J8>O!!!V%?%^$,Ck?2$7$F$$$k$H$-$O!"!J%?%^$O!K;RG-$N$3$H$r9M$($F$$(B $B$J$$!W$r(B
$BO@M}<0$GI=$7$F$/$@$5$$!#$?$@$7!"!V%?%^$,Ck?2$7$F$$$k!W$r(B X $B!"(B
$B!V!J%?%^$,;RG-$N$3$H$r9M$($F$$$k!W$r(B Y $B$H$*$/!#(B
$BEz$(!!(BX$B"M"L(BY

$B!J#2!K!!O@M}<0!!(B((X$B"J(B($B"L(BY))$B"M(B((Z$B"K(BX)$B"J(BY)) $B$+$i!"0UL#$rJQ$($:$K(B
$B3g8L$r$G$-$k$@$1=|$$$?O@M}<0$r=q$$$F$/$@$5$$!#(B
$BEz$(!!(BX$B"J"L(BY$B"M(B(Z$B"K(BX)$B"J(BY
$BCm!'!!(BZ$B"J(BY$B"K(BX$B"J(BY $B$O!"$3$NLdBj$N2rEz$H$7$F$OE,Ev$G$J$$!#(B
$B$7$+$7!"??M}CM$H$7$F$OF1$8$J$N$G!":#2s$O@52r$H$7$^$7$?!#(B

$B!J#3!K!!(Bv(X)=T, v(Y)=F $B$N$H$-!"(Bv(X$B"J"L(BY) $B$O(B T $B$G$9$+!"(B F $B$G$9$+!)(B
$B@5$7$$$[$&$r=q$$$F$/$@$5$$!#(B
$BEz$(!!(BT $B!JM}M3!'$3$N$H$-(Bv($B"L(BY)=T,$B!!$7$?$,$C$F!""J$N??M}CM$NDj5A$+$i(B
v(X$B"J"L(BY)=T

$B2rEz$O!J!J#2!K$r>e$N$h$&$K3HBg2r


$BBhFs2s2]Bj$r=P$7$^$9!#(B5$B7n(B12$BF|(B2$B;~8BL\$N=*$j$K $B2]Bj$N$?$a$NN}=,LdBj!'(B $BO@M}<0!!"L(B($B"L(BX$B"M(BY)$B!!$r!"(BX,Y,$B"L(B,$B"J(B $B$GI=$;!#(B
$B$9$J$o$A!"(BX,Y,$B"L(B,$B"J(B $B$N$_$+$i:n$i$l$k!J??M}CM$,91$KF1$8!KO@M}<0$r(B
$B5a$a$h!#$^$?!"$=$NM}M3$r<($;!#(B

$B2rEz!'!!"L(BX$B"J"L(BY
$B>ZL@!'!!(Bv($B"L(B($B"L(BX$B"M(BY))=v($B"L(B($B"L"L(BX$B"K(BY)=v($B"L(B(X$B"K(BY))=v($B"L(BX$B"J"L(BY)
$B$=$l$>$l$NEy9f$OL?Bj#3!$N"M$NJQ7A!"Fs=E"L$N=|5n!"L?Bj#3!$N(B
$B%I!&%b%k%,%s$NK!B'!"$K$h$C$FF@$i$l$k!#(B

Attention! $BBhFs2s2]Bj$G6lO+$7$FF~NO$G$-$J$$?M$,Bg@*$$$?$h$&$G$9!#(B
$B:#2s$K8B$j!"Mh=5N`;w$NLdBj$r=P$7$F!"2rEz $B$7$?$,$C$FMh=5$O2]Bj$,Fs$D$"$j$^$9!#(B
2$B;~8BL\$N$_8x3+!"$H$$$&$N$G$OF~NO$G$-$J$$?M$,B3=P$7$=$&$J$N$G(B
$B$"$-$i$a$^$7$?!##3;~8BL\$^$G1dD9$7$^$9!#(B
$B$J$*!":#F|@52r$r=P$7$??M$O%\!<%J%9E@$r=P$7$^$9!#(B

$B:#F|$N2]Bj$N2rEz!J$3$l$r$h$/JY6/$7$F!" (1) v($B"L(BX$B"M"L(B(Y$B"J(BZ$B!K(B)$B!J"M$NJQ7A!K(B=v($B"L"L(BX$B"K"L(B(Y$B"J(BZ)$B!JFs=E"L$N=|5n!K(B
=v(X$B"K"L(B(Y$B"J(BZ)) $B!J%I!&%b%k%,%s$NK!B'!K(B=v(X$B"K"L(BY$B"K"L(BZ)
$B$f$($K!"Ez$($O(B X$B"K"L(BY$B"K"L(BZ
(2) v($B"L(B($B"L(BA$B"J"L(BB))$B!J%I!&%b%k%,%s$NK!B'!K(B=v($B"L"L(BA$B"K"L"L(BB)$B!JFs=E"L$N=|5n!K(B v(A$B"K(BB).


$B#57n#1#2F|!'L?BjO@M}$N0UL#O@!J(Bp.106, $B#3!(B[1]$B!KO@M}<0$N91??@-!"= $B91??$J<0$NNc!'(BX$B"K"L(BX; X$B"M(BX; $B"L"L(BX$B"M(BX; X$B"M"L"L(BX; X$B"M(B(Y$B"M(BX) X$B"J(BY$B"M"L(B($B"L(BX$B"K"L(BY)
$BL7=b$9$k<0$NNc(B:$B!!(BX$B"J"L(BX; $B"L(B(X$B"M(BX)
$B91??$G$J$/!"= $BOB@QI8=`7A!J(B[3]$B<0$NI8=`7A(B pp.108-111$B!K(B

$BOB@QI8=`7A$NDj5A!"??M}CM!"91??@-$NH=Dj!"OB@QI8=`7A$X$NJQ7A


p.107, $BNc#3!$N!"(Bmax, min $B$r;H$o$J$$2rK!(B

$B$=$l$>$l$NO@M}<0$r(B G $B$H$*$/!#(B

(1) v(A)=T $B$N$H$-!""K$N??M}CM$NDj5A$+$i(B v(G)=T
v(A)=F $B$N$H$-(B:$B!!(Bv($B"L(BA)=T. v(B)=T $B$J$i$P(B v(B$B"J"L(BA)=T.$B$f$($K(Bv(G)=T.
v(B)=F $B$J$i$P!"(Bv($B"L(BB)=T. $B$f$($K(Bv($B"L(BB$B"J"L(BA)=T.$B$f$($K(Bv(G)=G
$B0J>e$h$j$9$Y$F$N>l9g$K(Bv(G)=T. $B$7$?$,$C$F!!(BG $B$O91??(B

(2) v(A)=T $B$J$i$P!""M$N??M}CM$NDj5A!J??M}CMI=!K$K$h$j!"(Bv(A$B"K(BB$B"M(B A)=T.
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$B$-$A$s$H<($9$3$H$,$G$-$^$9!#!J>\$7$$>ZL@$O>JN,!K(B
$B$3$N>O$G$ONcBj!JH?Nc$r4^$`!K$K$h$k4JC1$J1i;;$H5-K!$K=EE@$,$*$+$l$F$$$^$9!#(B
$B%F%-%9%H$NNcBj$r$h$/M}2r$7$F$/$@$5$$!#$3$3$K$bNc$r$*$-$^$9!#(B


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$B=q$/$3$H$G$9!#$+$J$i$:Cf3g8L$NCf$K=q$$$F$/$@$5$$!#(B
$BMWAG$N=q$-J}$O!"$l$NMWAG$rJB$Y$k!($$$/$D$+E57?E*$JMWAG$rJB$Y$F(B
$B$=$N8e$K!&!&!&$r$D$1!"0J8e$NMWAG$r?dB,$5$;$k!(!V$3$l$3$l$N@- $B>r7o$r=q$$$F!"$=$l$r$_$?$98DBN$N=89g!"$H$$$&=q$-J}$r$9$k!"$J$I$,$"$j$^$9!#(B
$B$=$N$H$-$I$-$KET9g$N$h$$=q$-J}$r$7$^$9!#(B
$B=89g$NNc$K$D$$$F$O!"=89g$N@-$B$3$3(B

$B$K$b$"$j$^$9!#(B

$B=89g!&=89g$N5-K!$N%-!<%o!<%I!'MWAG!"B0$9!"Cf3g8L!"A4BN=89g!JNN0h!K!"(B
$B=89g$NDj5A!J$J$^$($E$1!K!"#2=89g$NF10l@-!"6u=89g!#(B

$BCm!'%W%m%0%i%`8@8l$K$*$1$k!V7?!W$N$h$&$J$b$N!#(B
$BNc!'@0?t7?!"


$B#67n#9F|!'ItJ,=89g$H=89g$N1i;;!J(B[3],pp.5-6, [4],[5],pp6-9$B!K(B

$B=89g$NNcBj(B

Attention! $B $B$=$N$+$o$j!"%Z!<%Q!<%l%]!<%HDs=P(B


$B=89g$K4X$9$k5-9f$NF~NO$K$D$$$F(B

$BF~NO$7$K$/$$5-9f$O!"<+J,$G7h$a$F!V!&!&!&$HI=$9!W$HL@5-$7$F(B
$B;H$C$F$1$C$3$&$G$9!#$$$/$D$+E57?E*$J;H$$J}$r=q$$$F$*$-$^$9!#(B
$BOB=89g!'(Bcup $B!JNc(B A cup B$B!K!"(B $B6&DLItJ,(B : cap$B!JNc(B A cap B$B!K!"(B $BJd=89g!'Nc(B A^c
$B!V(Bx$B$,(BA$B$NMWAG$G$"$k!W$O(B x$B&%(BA$B!"(Bx$B&E(BA $B$J$I$HI=$5$l$k!#(B
$B&%!"&E(B $B$O$I$A$i$b!V$$$W$7$m$s!W$HF~NO$7$FJQ49$9$l$P(B
$B$?$$$F$$=P$F$/$k!#$=$l$bL5M}$J$H$-$K$O!V(Bx blongsto A$B!W(B,
$B!V(Bx is an element of A$B!W!"!V(Bx $B$O(B A $B$NMWAG!W$J$I$H=q$1$P$h$$!#(B
$B$[$+$K$b!"5-9f$K:$$C$?$iCN$i$;$F$/$@$5$$!#(B


1.1[5]p.8 $B=89g$N1i;;$K4X$9$kEy<0$NJdB-(B
$BJdB-$NJdB-(B

$BD{@5!'!!#2!!LdBj!!(B3. (1) (A cap B^c)^c =A^c cap B $B!J8m!K(B
$B@5$7$$@_Ld$O!!(B(A cap B^c)^c = A^c cup B $B$G$9!#(B


$BBhO;2s2]Bj2rEz(B
1) N={1,2,3,...} $B$G9M$($k!#(B
3$B$NG\?t$N=89g(BThrees$B$rDj5A$9$k!#(B
Threes = {n|n=3m, m$B&E(BN}={3n|n$B&E(BN}={3,6,9,...}
2) N$B$NCf$N6u=89g(B
$B$?$H$($P!"(B{n$B&E(BN|n=-1}, {n$B&E(BN|n < 0}, {n$B&E(BN|n=2n}
3) $B9%$-$J=89g$NNc!J$[$s$H$O9%$-$G$J$/$F$$$$$G$9$h!*!K(B
{x$B&E(BR| x is in [-1,1]}, $BCg$h$7(B={$B2V;R!"G_;R!":y;R!">>;R!"C];R(B}, {x|x$B$O9q!"(Bx$B$Ne(B}$B$J$I$J$I(B

$BBh0l2s%Z!<%Q!<%l%]!<%H2rEz(B

$B3'$5$s$NLdBj(B
$BBh0l2s%Z!<%Q!<%l%]!<%H2rEz$N!V3'$5$s$NLdBj!W=8$G$9!#(B
$BLdBj$i$7$/$9$k$?$a$K!"$[$s$N>/$7JQ$($?8D=j$b$"$j$^$9$,!"(B
$BBgBN$b$H$N$^$^$G$9!#$^$:!"3'$5$s$G2r$$$F$_$F$/$@$5$$!#(B
$B$=$N8e$G(B $B3'$5$s$NLdBj2rEzJT(B$B$r(B $B8+$F$/$@$5$$!#(B

$B#67n#2#3F|!'#1! $B/$70lHLE*$K!VBP1~5,B'!W$H$$$&(B $BCj>]E*$J35G0$G$"$k!#(B
$B$3$N2JL\$G$O
$B0l8}%a%b!'(B $B%i%8%*$GJ9$3$($?OC$G$9!#(B

$B$"$k$*0e $B$J$<$J$i!"$3$N$3$H$O!VAa4|H/8+$G$-$J$+$C$??M$OIT9,$G$"$k!W$r0UL#$9$k$N$G(B
$B $B0e3XE*$J$3$H$O$5$F$*$$$F!"$3$l$C$F@5$7$$!)(B
$BL?BjO@M}$K47$l$F$$$k3'$5$s$O!"$9$0$o$+$j$^$9$h$M!)(B


$B7nF|!'(B20$B%Z!<%8!<(B22$B%Z!<%8!"(B[7]$B91Ey $BB?2A $B $BNc!!(Bsin x $B$N%0%i%U(B= {$B!c(Bx,sin x$B!d(B | x in R}$B!"$?$@$7(B"x in R"$B$O!V(Bx$B$,(BR$B!J 14 $B%Z!<%8!"Nc#1!#0!!$N!!!J#3!K$N%0%i%U(B={$B!c(Bm,P_i$B!d(B| m=i14 or m=i37, i=1,2,...,9, P_i $B$O!!(Bi $BHVL\$N7JIJ(B}
$B?tNs!!(B{a_n}, $B$?$@$7(Ba_n =2n+1,$B$N%0%i%U$O!!(B{$B!c(Bn,2n+1$B!d(B|, n =1,2,3,...}


[$BOB@QI8=`7A$K$D$$$F$NCm0U(B]$B!'OB@QI8=`7A$O(B $B!V(BA_1 and A_2 and ... and A_n $B$N7A!"(B
$B$?$@$73F(BA_i $B$O4pK\OB!"$3$3$G(B n=1,2,3,...$B!W(B.$B!!(Bn=1 $B$bG'$a$F$$$k$3$H$KCm0U!#(B
$B$3$N$H$-(BA_1$B$O$R$H$D$N4pK\OB$G!"(Band $B$O4^$s$G$$$J$$$,!"OB@QI8=`7A$N(B
$BFC $B3F(B B_j $B$O%j%F%i%k!"$3$3$G(Bm=1,2,3,...$B!W!!(Bm=1 $B$b$_$H$a$i$l$k$3$H$KCm0U!#(B
$B$7$?$,$C$F0l$D$N%j%F%i%k$b4pK\OB$G$"$k!#6KC<$JNc$G$O0l$D$N%j%F%i%k$O(B
$BOB@QI8=`7A$J$N$G$"$k!*(B

$B#2#0#0#2G/EYBhFs2s%l%]!<%H2]Bj(B $B;29M$K$7$F$/$@$5$$!#(B


[$B=89g$NJY6/$N;EJ}(B]$B!'!!<+J,$G=89g$r$$$/$D$+Dj5A$7$F$/$@$5$$!#$I$N$h$&$JDj5A$N(B $B;EJ}$G$b$+$^$$$^$;$s!#(B
$B$=$l$i$r(BA,B,C,...$B$J$I$H$*$$$F!" $B9g$C$F$$$l$P!J$?$$$F$$!*!K=89g$N1i;;$r@5$7$/9T$C$F$$$k$H9M$($F$$$$$G$7$g$&!#(B
$B$J$*!"(Bcup, cap, empty, X^c $B$O$=$l$>$lOB=89g!"6&DLItJ,!"6u=89g!"(BX$B$N(B $BJd=89g$rI=$9!#(B

1. $B#8%Z!<%8$NL?Bj#1!$NEy<0!#(B
2. A cap (B-A) = empty; 3. (A cup B)^c cap C = (A^c cap C) cap (B^c cap C)
4. (A cap B^c ) cup D = (A cup D) cap (B^c cup D)
5. (A cup B) cap (C cup D)=(A cap C) cup (A cap d) cup (B cap C) cup (B cap D)
6. (A cap A^c) cup D=D; 7. (A-B)cap (B-A)=empty
8. (A-B)cup (A cap B) cup (B-A)=A cup B

$BD>@Q$O#1#1%Z!<%8$NDj5A0J30$K$O$H$/$K$$$&$3$H$O$J$$$G$9$,!"$H$F$bBg;v$J$b$N$G$9!#(B
$B$lFs$D$N=89g$ND>@Q$r5-=R$7!"$=$l$+$i:n$l$kI=$r9M$($F$/$@$5$$!#(B
1. A:={T,F}, B:={T,F}$B!"$3$3$G(BT,F$B$O??M}CM!#(B
2. A:=$BETF;I\8)A4BN(B, B={[n,n+5]| n=0,6,11,16,21,...116}, [n,n+5]$B$O(Bn$B:M$+$i(B n+5$B:M$NG/Np$rI=$9!#(B

$B2rEzNc!'(B1. A$B$r=D$K!"(BB$B$r2#$K=q$1$P!"(BA $B$H(BB$B$N??M}CM$NBP$KBP$9$k(B"and"$B$N(B $B??M}CMI=$r:n$l$k!#(B 2. $B3FETF;I\8)$K$*$1$k#5:M$4$H$N?M8}I=$r:n$l$k!#(B


[$B $B!JA40hE*!"ItJ,E*!"C1 $B$=$l$i$N$&$AM}2r$G$-$J$$Nc$,$"$l$P $Bo@83h$K(B $B$*$1$kBP1~$G$b$$$$$G$9!#(B
$B!v $B $B$3$l$O@.@S$K$O4X78$J$/!"6/@)$G$O$"$j$^$;$s$,!"=q$$$FDs=P$7$?$i8+$F$"$2$^$9!#(B

$BBh(B8$B2s2]Bj2rEz(B

$B!J#1!K!!(B(A cup (B cap C))^c = A^c cap (B cap C)^c (i)
= A^c cap (B^c cup C^c) (ii)
= (A^c cap B^c) cup (A^c cap C^c) (iii)
$B>e$N=89g$NEy<0$N(B (i),(ii),(iii) $B$N$=$l$>$l$O!"(B $BL?Bj#1!$NEy<0$N(B
$B$I$l$r;H$C$F$$$k$+!"(B $BEy<0$NL>>N$r=q$$$F$/$@$5$$!#(B

$BEz$(!!(B(i) , (ii) $B%I(I%$B%b%k%,%s$NK!B'!(!!(B(iii) $BJ,G[N'(B

$B!J#2!K!!(BA $B$OFs?M$N;R6!$NL>A0$N=89g!"(B
B $B$OFs?M$KCe$;$?$$K9;R$N?'$N=89g$H$9$k!#(B
$B$9$J$o$A!"(BA={Mary, John}, B={Red, White} $B!#(B
$BFs?M$N;R6!$HK9;R$N?'$NAH$_9g$o$;$9$Y$F$N=89g$O(B
A x B $B!J(BA$B$H(BB$B$ND>@Q=89g!K$G$"$k!#(B

$B!!(BA x B $B$r!JMWAG$N=89g$H$7$F!KI=$7$F$/$@$5$$!#(B

$BEz$(!!(BA x B ={$B!c(Bx,y$B!d(B|x $B&E(B A, y$B!!&E(BB}$B!!$,!"D>@Q$NDj5A$G$"$k!#(B
$B$3$l$rEz$($K$7$F$b@5$7$$$N$G!"@52r$K$7$F$^$9$,!"!VMWAG$N=89g$H$7$F!W(B
$B$H=q$$$?0U?^$O!" A x B = {$B!c(BM,R$B!d(B,$B!c(BM,W$B!d(B,$B!c(BJ,R$B!d(B,$B!c(BJ,W$B!d(B}.
$B!c(BM,R$B!d$O!"!J(BM$B$H(BR$B$N!K=g=x$D$-$NBP$G$9!#(B{M,R}$B$O=g=x$OL54X78$G$9!#(B
$B!J(BM,R)$B$b=g=xBP$G$9!#$U$D$&$O$3$N5-K!$r;H$$$^$9!#(B

$B!J#3!K!!!J(B2$B!K$N(BA$B!!$N$Y$-=89g!!(BP(A) $B$r(B $B!JMWAG$N=89g$H$7$F!K(B $BI=$7$F$/$@$5(B $B$$!#(B

$BEz$(!!(BP(A)={$B&U(B,{M},{J},A}


$B#67n#3#0F|!' $B@Q=89g$NItJ,=89g$N4X78!#(B

$B $B 1. f:R$B"*(BR, f(x) = 1/x; 2. f: X={x| x>0} $B"*(BR,$B!!(B f(x)=1/x; 3. f: R$B"*(BR,$B!!(B $B#f!J#x!K!a"e(B(1-x);
4. P = $B?M!9$N=89g(B, N={1,2,3,...}, C={x| x $B$O9q(B}, psprt: P $B"*!!(BCxN $B!J(BC$B$H(B N$B$ND>@Q=89g!K(B,
P(person) = , c$B!!$O(B person $B$,9q@R$r$b$D9qL>!"(Bn $B$O(B person $B$K(B c $B$,H/(B $B9T$7$?N97tHV9f(B
5. 4 $B$HF1MM$N5-9f$G!"(BH: CxN$B"*(BP, H()=person, $B$O9qL>$H?t$NBP!"(B person$B$O(B
c$B9q$,H/9T$7$?HV9f(Bn$B$NN97t$NJ];} 6. tan: R$B"*(BR $B!J;03Q4X?t(Btangent$B!K(B; 7. log: {x| x>0}$B"*(BR$B!!(B

$B 1. $BItJ,!"C1!(!!#2!%!!A40h!"C1!(!!#3!%!!ItJ,!"C1!(!!#4!%!!ItJ,!"C1!(!!#5!%(B $B!!ItJ,!"!!!JC1 $BJ#?t$N9q$NN97tJ];}e$OC1
$B4|Kv;n83$K$D$$$F(B

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$B$h$/M}2r$7$F$*$/$3$H!#$^$?!"2a5n$NLdBj$,$3$N%Z!<%8$K$"$k$N$G!"(B
$B2r$$$F$_$k$H$$$$!#!V3'$5$s$NLdBj!W$bNI$$JY6/$K$J$j$^$9!#(B
$BG[E@$O!"!J2]Bj!\%l%]!<%H!K(B/$B4|Kv;n83(B $B!a(B 30/70 $B$G$9!#(B


$BBh6e2s2]Bj2rEz!'$3$N2]Bj$O (i) h:S$B"*(BT
$BMW$9$k$K $B$NDj5A$=$N$b$N$G$9!#(B
(ii) (b), (c)
h $B$O#5#0#0#0?M$N$&$A$NEv$?$j$/$8$r0z$$$?#2#0#0#0?M$N3F?M$KBP$7$FEO$5$l$k(B $B%A%1%C%HHV9f$r(B
$BBP1~$5$;$k $B;D$j$N#3#0#0#0?M$O%A%1%C%H$r$b$i$($J$$$+$i!"(Bh $B$K$h$kBP1~$O$J$$!#$9$J$o$A!"(B h $B$NDj5A0h$O(B
$BEv$?$j$/$8$r0z$$$?#2#0#0#0?M$@$1$G$"$k!#$7$?$,$C$F!"A40hE*$G$O$J$$!#(B
$B0lKg$N%A%1%C%H$rJ#?t$N?M$,6&M-$G$-$J$$$+$i!"C1 $B%A%1%C%H$N3FHV9f(B n $B$KBP$7$F!"$=$l$r$b$i$&?M$,$$$k!#$7$?$,$C$F(B h $B$OA4 $BCm!' $BDj5A$r$h$/M}2r$9$l$P!"Fq$7$$$3$H$O2?$b$J$$$N$G$9!#(B

$B#77n#7F|!'#1!!!4X78!!!J(B23$B%Z!<%8$+$i!K$KF~$j$^$7$?!#(B
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$B$N$HF1$8$G$9!#$=$l$r?t<0$dO@M}<0$G5-=R$9$k$@$1$G$9!#NcBj$r$h$/FI$s$G$/$@$5$$!#(B
$B4X78$OO@M}<0$J$I$GI=$5$l$^$9$,!"D>@Q=89g$NItJ,$G$"$k$H$b$$$($^$9!#!J(B[2] $B4X78$H(B $BItJ,=89g!K(B
$B$9$Y$FNcBj$G$^$:M}2r$7$F$/$@$5$$!#L?Bj#1!$J$I$O(B n=2,3 $B$/$i$$$G=q$-D>$7$F$_$F$/$@$5$$!#(B
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$B$I$A$i$bBg;v$G$9!#(B


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$BI=$9$H$9$k$H!"(Ba$B$O?M$N=89g!J(BPeople$B$H=q$3$&!K$NMWAG$G$"$j!"(B
b$B$OK\$N=89g!J(BBook$B$H=q$3$&!K$NMWAG$G$"$k!#$7$?$,$C$F(BR$B$O(B
$BD>@Q=89g(BPeople x Book$B$N>e$GDj5A$5$l$F$$$k!#$3$N$h$&$J$H$-$K$O(B
$BF1CM@-$H$+=g=x$H$+$O9M$($k$3$H$O$G$-$J$$!#(B
$BF1CM@-$dl9g$K$OF1$8=89g!J$?$H$($P(BS$B!K$ND>@Q(B
S x S $B$N>e$GDj5A$5$l$k!#(B
$B$J$*!"4X78$rI=$9J8;z$^$?$OJ8;zNs$O2?$r;H$C$F$bNI$$!# $BFbMF$rI=$9J8;zNs$r;H$&$HJXMx$G$"$k!#$^$?!"8DBNJQ?t$K$b(B
$B2?$r;H$C$F$b$h$$!#%W%m%0%i%`8@8l$G$O$"$kDxEY;XDj$5$l$F$$$k!#(B

$B4X78$NNc(B(1.3[1]p23)
1. B(a,b): a $B$O(B b $B$N7;$G$"$k(B
2. BS(x,y): x $B$H(B y $B$O$-$g$&$@$$$G$"$k!#(B
3. Cityof(x,y): x $B$O(B y $B$NET;T$G$"$k!#(B
4. Country(z): z $B$O9q$G$"$k!#!J8DBN$K$D$$$F$N@- 5. Sequence(n,a): a $B$O(B n $BHVL\$NMWAG$G$"$k!J(Bn $B$O@5@0?t(B
$B!"(B a $B$O 6. Triangle(A,B,C): A,B,C $B$O!JJ?LLFb$N!K#3E@$G;03Q7A$r7A@.$9$k(B

$B1i=,LdBj#1#0(B(1.3[2][6],1.1[7])
(1) $B>e$NNcBj$N$=$l$>$l$N4X78$,Dj5A$5$l$kD>@Q=89g$rI=$;!#!J3F=89g$O(B $BE,Ev$JJ8;z$GI=$9!K(B
(2) $B>e$NNcBj$N$&$A!"F1CM4X78$O$I$l$+!)(B
(3) $B<+J,$G$$$m$$$m$J4X78$rDj5A$7$F!JF1CM$J$b$N$d$=$&$G$J$$$b$N!K!"(B
$B$=$l$,Dj5A$5$l$kD>@Q=89g$r5a$a$h!#(B

$B2rEz(B(1)$B!J$?$H$($P!K(B1,2: People x People 3. City x Country
4. A $B!J$?$@$7(B A $B$OCO?^D"$K$"$kCOL>$N=89g!K(B5. N x R
6. Points x Points x Points $B!J(BPoints $B$OJ?LL$NE@!K(B

(2) 2, 6


$BBh#1>OA4BN$K$D$$$F!'(B $B!V=89g!& $B $Be$GDj5A$5$l$k$H$9$k!#(Bx=1$B$G$ODj5A$5$l$J$$$N$G(B
$BItJ,E*4X?t!#(BG_f = {$B!c(Bx,1/(x-1)$B!d(B| x>1 or x<1}. R x R $B$NItJ,=89g(B
x $B$,ET;TL>$H$7$F!"(Bcountryof(x)=x $B$,$"$k9qL>(B
G_countryof={$B!c(Bx,y$B!d(B| x $B$OET;TL>$G!"(By $B$H$$$&9q$K$"$k(B}

$B=89g$K$h$C$FDj5A$5$l$k f_S \(x)=x^2 +1
C={$B!c(Bx,y$B!d(B| x $B$OET;TL>$G!"(By $B$H$$$&9q$K$"$k(B}$B$H$9$l$P!"(B
f_C(x)$B$O(Bcountryof(x)$B$HF1$84X?t$K$J$k!#(B

$B4X78$K$h$C$FDj5A$5$l$k$G(B
x $B$O(B $B9q(B y $B$K$"$k!W$rI=$9$H$9$k$H!"(Bf_Countryof(x)$B$O(B
Countryof(x,y)$B$H$$$&4X78$rK~$?$9!J$A$g$&$I0l$D$N!K(By$B$rCM$H$7$F$H$k(B $B4X?t(B

$B3F<+$$$m$$$m$JNc$r$_$D$1$F$_$F$/$@$5$$!#(B


$BBh==2s2]Bj2rEz(B

(1)exp$B$NCM0h$O(B (0,$B!g(B)$B$^$?$O(B{y|y>0}
(2) exp^{-1}(x)=log_e x
(3) G_exp = {$B!c(Bx,e^x$B!d(B|x$B&E(BR}
$BCm!'(B(1)$B$O!VCM0h$O2?$+!)!W$H$$$&Ld$J$N$G!" $B$rEz$($k!#=q$-J}$O>e$N$I$A$i$G$b$h$$$,!"(B{exp(x)|x$B&E(BR}$B$O!"!VCM0h$N(B
$BI=$7J}!W$J$N$G!"4V0c$$$H$b$$$($J$$$,!""$$K$7$F!"G[E@$7$J$+$C$?!#(B
$B$^$?!"(By>0$B$H$@$1=q$$$F$b!"?t3X$G$ODLMQ$9$k$,!"7W;;5!2J3X$G$OI=5-K!$,(B
$B=EMW$J$N$G!"G[E@$7$J$+$C$?!#(B
(2)$B$O$[$H$s$I$G$-$F$$$?!#(Blog_e x$B$G$b(Blog x $B$G$b(B ln x$B$G$b$h$$!#(B
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$B3'$5$s$,=q$$$?$h$&$K(B{$B!c(Bx,exp(x)$B!d(B|x$B&E(BR}$B$G$h$$!#(B


$BL?BjO@M}$NO@M}<0$K4X$9$k$$$m$$$m$J4X78!'Nc$HH?Nc(B

1. Eq(A,B)$B!!"+"*!!(Bv(A)=v(B)$B!!!J$,91$K@.$jN)$D!K!'F1CM4X78(B
2. Imp(A,B) $B"+"*!!(Bv(A)=T $B$J$i$P!!(Bv(B)=T$B!'!!H>=g=x4X78$GA4=g=x$G$J$$(B
$BCm!'(BImp(A,B)$B$O!V(BA$B"M(BB $B$,91??!W$H$$$&$3$H$HF1$8!#(B
3. Less(A,B) $B"+"*!!(BA$B"M(BB $B$,91??$G$"$j!"(BB$B"M(BA $B$,91??$G$J$$!'$3$N@a$N$I$N4X(B $B78$G$b$J$$(B


2002$BG/EY4|Kv;n832rEz$D$-(B
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$B4|Kv;n83$N$?$a$N 7$B7n(B22$BF|!J2P!K(B 3:30pm->4:30pm
$B$3$N;~4VBS$KET9g$D$+$J$$>l9g$K$O%a!<%k$GO"Mm$/$5$5$$!#(B
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$B$3$N$H$-$K8+$l$^$9!#2rEz$O8e$G$3$3$K=q$-$^$9!#(B
$BBh#1#12s2]Bj2rEz$D$-(B

$B#1!%!! (1) R_1(a,b): a $B$H(B b $B$O@5@0?t$G!"F1$8AG?t$G3d$j@Z$l$k!#(B
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(3) R_3(a,b): a $B$H(B b $B$O@5@0?t$G!"(Ba $B$O(B b $B$r3d$j@Z$k!#(B
$B!J<+J,$r3d$j@Z$k$3$H$bG'$a$k!#$^$?(B $B#1(B $B$O$9$Y$F$N?t$r3d$j@Z$k$b$N$H(B $B$9$k!#!K(B
(4) R_4(a,b): a $B$5$s$H(B b $B$5$s$O!"F1$8D.Fb$K=;$s$G$$$k!#(B
(5) R_5(a,b): a $B$H(B b $B$O(B $B.?tItJ,$,F1$8$G$"$k!#(B
(6) R_6(a,b): a $B$5$s$H(B b $B$5$s$O(B K $BBg3X$N3X@8$G!"$=$l$>$l(B
$B!!!!!!8=:_$N%;%a%9%?! $B!!!!!!$D$$$F$$$k!#$9$J$o$A!"(BR_6(a,b) $B$,@.$jN)$D$N$O!"(Ba $B$5$s$N%;%a%9%?!<(B $B?t$,(B
$B!!!!!!(Bb $B$5$s$N%;%a%9%?!.$5$$$+!"$b$7F1$8$J$i$P!"3X@RHV9f$,>.$5$$!#(B
$B!!!!!!!J(Ba$B!a#b!!$N$H$-!"(BR_6(a,b)$B$O@.$jN)$?$J$$$b$N$H$9$k!#!K(B
$B0J>e$N$&$A!" $B!J0l9`L\$KJ#?t$NHV9f$,AjEv$9$k$+$b$7$l$J$$$7!"0l$D$bAjEv$7$J$$$+$b$7$l$J(B $B$$!#!K(B
$B4X78$N@- (b) $BH>=g=x4X78$G$"$C$F!"A4=g=x4X78$G$J$$(B: (3)
(c) $B87L)$J0UL#$G$NA4=g=x4X78(B: (6)
(d) $B@0AC4X78(B: (6)

2. $BFs$D$N1QC18l(B X, Y $B$G!"(BX $B$H(B Y $B$O#3J8;z0J>e$G0lCW$7!"<-=q<0=g=x$G(B X $B!!!!$J$k$b$N$r0lAH=q$$$F$/$@$5$$!#!J%F%-%9%H$K$J$$$b$N!K(B
$BNc!'!!(Bcomfort < company
com $B$H!":G=i$N#3J8;z$,0lCW!#(B f < p $B$@$+$i!">e$N=g=x$K$J$k!#(B
$B$J$*!"1QC18l!"$H$$$&$3$H$J$N$G!"C18l$H$7$F<-=q$N9`L\$K8=$l$k$b$N$,9%$^$7(B $B$$!#(B
$B$?$H$($P(Bwalked < walking $B$G$O$"$k$,!"(Bwalked $B$OF0;lJQ2=$G$"$k!#(B
walker < walking $B$J$I$N$[$&$,$h$$!#(B


$B9gH]$K$D$$$F(B
$B$3$N2JL\$N:G=*E*$J9gH]7k2L$O!"%&%'%C%V%Z!<%8$N!I2JL\9gH]!I(B
$B!JH,?y$N(BHP$B"*9V5A4X78"*2JL\9gH]!K$K!"!VIT9g3J $B7G:\$7$^$9!J#77n=*$o$j$+$i#97nKv$^$G!K$N$G!"Aa$a$KCN$j$?$$?M$O$=$3$G3NG'(B
$B$7$F$/$@$5$$!#8D!9$NLd$$9g$o$;$K$O1~$8$+$M$^$9!#(B

$B4|Kv;n832rEz$K$D$$$F(B
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../
/
Last modified: Sun Feb 1 12:20:58 JST 2004