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Let's consider a tautology first, and then a contradiction: Consider the statement "\((2 = 3) \vee (2 \ne 3)\)": Let's make a truth table for general case \(p \vee (\neg p)\): As you can see, no matter what we do, this statement is always true. 2MnP-U4&$G/lYd]1<69D&Hn@TM]aBRZ;8I!`/n=^.h46X;L`U*>7/Wks5mKCWo8:Z:KPZC>CYnm Q q Q q /F4 1 Tf "`K2\5@[VZ'6'ufdWW2iKE&bSqdD[27ECO;fS$+fVj".kW1n'OVr] /F4 1 Tf @beq06Cl=Eb/j$Eb-A4F`[t$F`8H\1*A5hEb/`lA7]h#E 28.446 20.005 Td (T) Tj Fb%M^Y'Om(j$u:BQ9(ES`,CW>pMd>F_>-'(V5]a#n,\?Y@JjYQVBG@(pLLA`T:$I"amn(\RjEMF')& 3.103 0 Td (of) Tj V/F+2T(5V3a`'?%c4(! endobj /Length2 10935 /F1 1 Tf 0.470 0 Td (\)) Tj tP:-s0J&b%$,^0qd>3Ds*s\!.MQfSM@Vu#`*j)Q#ePHI#"ur>2Q6Yo56b#7#2U]5Kfqt>@2e!c`-A+ Capital letters like P, Q, R, S etc are used to represent compound propositions. 24.220 54.468 Td (T) Tj RX.2hMII]GQl!`'3?=T>bIGT-c_X7imS2NG,b+8eg"Q0nuEW9#6IJ6R.-/#QZVX7^k,+8mr_\YJiML MEqO99+$?4m_\HHbsZ.h\Npc((H;0`KqZhSFbZkC]r,B))*8h.1oo4ai+q:n8>N,r,eq\ApcrD#?=" puO&][XPK7A.mB,>u'X=Y;@1A^MDI;VAn8]Yb*F?enqu'KKT?QNg@-&2_kgYDWf(>dE]h)3@b@Aq8LS= Tj 183.36 399.84 m 183.765 399.84 l 183.765 413.79 l 183.36 413.79 l f \4$)\mqWb&r1)kOTiFuQ,ij0jhCY!:ggY_=ndG'V;ZmCHn(U:?.cW'dDWK+d/>VFC&? /F4 1 Tf (t+>6D2E-670A9Di62`Dj49d"CtF:)Q$ Below are the possibilities: the first is the least profound. 32 0 obj 0.491 0 Td (,) Tj 276.48 647.04 m 276.885 647.04 l 276.885 660.99 l 276.48 660.99 l f Q q >> << Example 2.1.3. 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Bluman, Angie Matthews, Dave Sobecki, Find the slope of the curve at the point indicated. '?%(gr;2`:;`C:Ol,uL!AV@8u7^nAbbV.WoOC*f! 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B"mp#R`F^D"sXrL0g^J49I(DH-EF`kc/ame"g9g*/9eAY%CpOr2gU-19.O$mn9u%8`=]le^&Joh)!) MEqO99+$?4m_\HHbsZ.h\Npc((H;0`KqZhSFbZkC]r,B))*8h.1oo4ai+q:n8>N,r,eq\ApcrD#?=" << :95Kq1?j>lO!d*%D?AdV(NqIpem#E;5uQ?-+l"E(&XT]iO`"QU2Aui1 )&Xa7,8CRi`ASh&W'GL*P"`Q0Io;? Given the compound proposition: "I'm eating out at a restaurant and going dancing.". Tj ET /Length 51 0 R 1FtZB&mMWoYWXZR/%$F3/]?L`L;;b=n,"WogmOaU-.,Pjd/5 /F4 1 Tf :po47o87']?7\=9hXR?M7=S(U2AKlI[J+8-c1GcB*Ms".NC\rOqqS_0k>HWtnRTKm8N ?0oD..O#@ps0r;f?/[ATW2M+@0g[+AuodBQS;o(@:X:oCj@.6AS)9&7W30d:18!N+>6)V;DBpLA7]?[02Q(kDKJj'E+L. /F4 1 Tf &.i%Z,1TMA8lZsSkLJ9N;fC>RQBZIj7TjD@'p:coSAEc#u0A)1UR_.\$d H&oX]7("fh=p&B91fGjl*Nb50$d]'7gBN;!Sj-G:p#+dOZDh*>31+9HA5-4bI"ttMHoco7C:F04aD4 V$0TNq%rN'+)72e*4l4lC$0j7ll>p$E2F/]7;EW$j/C9om%^?>3`\"Sm8C1cXQ-[6c9;Ep&*NFuDE))Y81V8CdM]f]Z?he#Ho]#Dd_#,-mb+/ce"'SA)p%-?WXnOU9GNjP1Wbh&,=EG:Yp&k4V+ZI_S%73?k< /Filter /ASCII85Decode BT 0.713 0 Td (^) Tj >> 1.740 0 Td (from) Tj 33 0 obj h\e_Jg?JIW>tX]Lrn>o#kX=:k#K.B4.CHolj,daV]9B,Y0ds2gdu,"MCiHi$a;8c#SeFo=IYcEeE+- Q q << In each case, use a truth table to decide to which of these categories the proposition belongs: a) (p (p q)) q b) ((p q) (q r)) (p r), c) p p d) (p q) (p q) /Type /FontDescriptor :b[YF7j8'aKjj]Xae"U9[84RQ('%-MQmk1qoR@n\0WW`N! j,XC&8a6EFINVg\3GL?86cA.oYTi]K%/ndbAmTQDhCTRZUK.(.>p0\f0HD$Zoj3E. 0.769 0 Td (!) 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BT 37T4EcH2_J4nY'"NV!3E-i;=:"*'tUW+?2A*T]AJ4Hq&VL];CN0,4m>V:/ttN#sDl,7ssbXFGp.p!Q BT /F4 1 Tf Tj Bi-conditional statements are conditional statements which depend on both component propositions. /F4 1 Tf >> << (4O\,d*Q*f%@9BiX+.C:Er#)oZm58EO`LW`)#J:?U3+?T!1fV>P'AaSR# K"$n7XRg8UDGbb=G;?pS?^LqJ*A(?6oHg&mXj"1Qu5k4NRi34CmQRXb\McDJ).LU/7:uOq*mZSVNQr \>.3b"_H+=ETC[Ia`G-UW]8]u0Rl"\r.q^*Xh'5d;GVl_bGVn6nZ.Xu#pu;==8bq>hU7FMh)LZ>Xqu;Qd*IEFbmp=_Cq$'uEf#K=K$g>I.MZU$il@%RR-RmnJTimmtX-Y>\%?qJFGM%1r[$Yad`rcJ9;)=O] FaQWHW%)Q2_AJXgJrbMIr!Y1nsN;&&F;,O.Q8jD0;-k"g9diif,(FWTlq6"E!#Z0;u$Cn/;((8fnB( /FontName /CMBX12 Q q /F1 1 Tf )%u01[4 /Type /Encoding &G=lJ-ki Nd)X,T6;/%dmDSj*T#_hXpf3]:W0=dajCr(iS"blO#=5;ape/s*I=N@27uV'"91`C(O"5/GC6?gSL: Q q Dg,Z/FD)e9F`[t$F`8H[0d&,XEcQ)BA7B@qBkM+$+E2IF$=n9u+>bnt04AmADg,`$Cgq=)BHV8:F:) /F1 1 Tf endobj 165.12 456.48 m 447.234 456.48 l 447.234 456.885 l 165.12 456.885 l f Q q (Reference: Discrete Mathematics (7th Edition) Kenneth H. Rosen) Example: S = (p q) (p q) F << /F1 1 Tf Q q rm#S3lAuqRaH`ZW=S:sTrV'J`$I78=3,;BQhEBr:\RTllqpoT:>])SDmJ+glW1aa5FHCs[9U91/:S6 @:t^Q"3Sa"=@nSE(H_6cKKl[Fe0lIfLi-t0a, 33 0 obj (TZXk,%2,=oSE /F5 1 Tf TYMYH@WU';Sl4hf.`I0VseLns0'76@9BN#bL/s.+!t1[;rk-)`EOL?eg+/cH-)S$1PR\tH9$U^c+mH19^G@Q$^O.9f6-*A *NS.ft#YQl`I4haq'$-p:$hn@;?p7Ao92\!NT0R?0F?g5Jn!C^[CqIW"T/;(a7oK_RL?G]+"i6H"Q4>:;-d`q\O(8V66:UR"EK@S? Q q 'i@CW.2m;@/#VsfI%1@T]>\37m8/10" "@jMuM`@Rr]qC9,Lc*rKI5*8bqXMf$.jkB>JB0jubNK*V? /Filter /ASCII85Decode ES)?8b0=96]=ZL"s@)ponP8?br_DL]oB64ac7(GQ"?JRPeA!_+0p7c1/NTA>6NCgXX3khMQWm-S*M^pS; jd;36ssNJZJEHC)WW*Q-e6,'lml\*P s#7,)t+4QL`N[Tb+X8T/\)S0JUZAl(:sOuX_$?uGi?jEfrUMfgnp1`B4gA[Zmck'pL+U9o@#QOaD3_Dn\/qM]sMu'KXVYmTGnmok6sL+X_W!GV0DF$an /F4 1 Tf Q q Conjunction statements use two or more propositions. 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