📄 if_practical.ps
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90 rotate 1 -1 scale ppr 3 get ppr 1 get neg sub neg ppr 2 get ppr 0 getneg sub neg TR}if xflip yflip not and{TR pop pop 90 rotate ppr 3 get ppr1 get neg sub neg 0 TR}if yflip xflip not and{TR pop pop 270 rotate ppr2 get ppr 0 get neg sub neg 0 S TR}if}ifelse scaleby96{ppr aload pop 4-1 roll add 2 div 3 1 roll add 2 div 2 copy TR .96 dup scale neg S neg STR}if}N/cp{pop pop showpage pm restore}N end}if}if}N/normalscale{Resolution 72 div VResolution 72 div neg scale magscale{DVImag dup scale}if 0 setgray}N/psfts{S 65781.76 div N}N/startTexFig{/psf$SavedStatesave N userdict maxlength dict begin/magscale true def normalscalecurrentpoint TR/psf$ury psfts/psf$urx psfts/psf$lly psfts/psf$llx psfts/psf$y psfts/psf$x psfts currentpoint/psf$cy X/psf$cx X/psf$sx psf$xpsf$urx psf$llx sub div N/psf$sy psf$y psf$ury psf$lly sub div N psf$sxpsf$sy scale psf$cx psf$sx div psf$llx sub psf$cy psf$sy div psf$ury subTR/showpage{}N/erasepage{}N/setpagedevice{pop}N/copypage{}N/p 3 def@MacSetUp}N/doclip{psf$llx psf$lly psf$urx psf$ury currentpoint 6 2 rollnewpath 4 copy 4 2 roll moveto 6 -1 roll S lineto S lineto S linetoclosepath clip newpath moveto}N/endTexFig{end psf$SavedState restore}N/@beginspecial{SDict begin/SpecialSave save N gsave normalscalecurrentpoint TR @SpecialDefaults count/ocount X/dcount countdictstack N}N/@setspecial{CLIP 1 eq{newpath 0 0 moveto hs 0 rlineto 0 vs rlineto hsneg 0 rlineto closepath clip}if ho vo TR hsc vsc scale ang rotaterwiSeen{rwi urx llx sub div rhiSeen{rhi ury lly sub div}{dup}ifelsescale llx neg lly neg TR}{rhiSeen{rhi ury lly sub div dup scale llx neglly neg TR}if}ifelse CLIP 2 eq{newpath llx lly moveto urx lly lineto urxury lineto llx ury lineto closepath clip}if/showpage{}N/erasepage{}N/setpagedevice{pop}N/copypage{}N newpath}N/@endspecial{count ocount sub{pop}repeat countdictstack dcount sub{end}repeat grestore SpecialSaverestore end}N/@defspecial{SDict begin}N/@fedspecial{end}B/li{lineto}B/rl{rlineto}B/rc{rcurveto}B/np{/SaveX currentpoint/SaveY X N 1setlinecap newpath}N/st{stroke SaveX SaveY moveto}N/fil{fill SaveX SaveYmoveto}N/ellipse{/endangle X/startangle X/yrad X/xrad X/savematrixmatrix currentmatrix N TR xrad yrad scale 0 0 1 startangle endangle arcsavematrix setmatrix}N end%%EndProcSet%%BeginFont: CMSY8%!PS-AdobeFont-1.1: CMSY8 1.0%%CreationDate: 1991 Aug 15 07:22:10% Copyright (C) 1997 American Mathematical Society. All Rights Reserved.11 dict begin/FontInfo 7 dict dup begin/version (1.0) readonly def/Notice (Copyright (C) 1997 American Mathematical Society. All Rights Reserved) readonly def/FullName (CMSY8) readonly def/FamilyName (Computer Modern) readonly def/Weight (Medium) readonly def/ItalicAngle -14.035 def/isFixedPitch false defend readonly def/FontName /CMSY8 def/PaintType 0 def/FontType 1 def/FontMatrix [0.001 0 0 0.001 0 0] readonly def/Encoding 256 array0 1 255 {1 index exch /.notdef put} fordup 161 /minus putdup 162 /periodcentered putdup 163 /multiply putdup 164 /asteriskmath putdup 165 /divide putdup 166 /diamondmath putdup 167 /plusminus putdup 168 /minusplus putdup 169 /circleplus putdup 170 /circleminus putdup 173 /circlemultiply putdup 174 /circledivide putdup 175 /circledot putdup 176 /circlecopyrt putdup 177 /openbullet putdup 178 /bullet putdup 179 /equivasymptotic putdup 180 /equivalence putdup 181 /reflexsubset putdup 182 /reflexsuperset putdup 183 /lessequal putdup 184 /greaterequal putdup 185 /precedesequal putdup 186 /followsequal putdup 187 /similar putdup 188 /approxequal putdup 189 /propersubset putdup 190 /propersuperset putdup 191 /lessmuch putdup 192 /greatermuch putdup 193 /precedes putdup 194 /follows putdup 195 /arrowleft putdup 196 /spade putdup 0 /minus putdup 1 /periodcentered putdup 2 /multiply putdup 3 /asteriskmath putdup 4 /divide putdup 5 /diamondmath putdup 6 /plusminus putdup 7 /minusplus putdup 8 /circleplus putdup 9 /circleminus putdup 10 /circlemultiply putdup 11 /circledivide putdup 12 /circledot putdup 13 /circlecopyrt putdup 14 /openbullet putdup 15 /bullet putdup 16 /equivasymptotic putdup 17 /equivalence putdup 18 /reflexsubset putdup 19 /reflexsuperset putdup 20 /lessequal putdup 21 /greaterequal putdup 22 /precedesequal putdup 23 /followsequal putdup 24 /similar putdup 25 /approxequal putdup 26 /propersubset putdup 27 /propersuperset putdup 28 /lessmuch putdup 29 /greatermuch putdup 30 /precedes putdup 31 /follows putdup 32 /arrowleft putdup 33 /arrowright putdup 34 /arrowup putdup 35 /arrowdown putdup 36 /arrowboth putdup 37 /arrownortheast putdup 38 /arrowsoutheast putdup 39 /similarequal putdup 40 /arrowdblleft putdup 41 /arrowdblright putdup 42 /arrowdblup putdup 43 /arrowdbldown putdup 44 /arrowdblboth putdup 45 /arrownorthwest putdup 46 /arrowsouthwest putdup 47 /proportional putdup 48 /prime putdup 49 /infinity putdup 50 /element putdup 51 /owner putdup 52 /triangle putdup 53 /triangleinv putdup 54 /negationslash putdup 55 /mapsto putdup 56 /universal putdup 57 /existential putdup 58 /logicalnot putdup 59 /emptyset putdup 60 /Rfractur putdup 61 /Ifractur putdup 62 /latticetop putdup 63 /perpendicular putdup 64 /aleph putdup 65 /A putdup 66 /B putdup 67 /C putdup 68 /D putdup 69 /E putdup 70 /F putdup 71 /G putdup 72 /H putdup 73 /I putdup 74 /J putdup 75 /K putdup 76 /L putdup 77 /M putdup 78 /N putdup 79 /O putdup 80 /P putdup 81 /Q putdup 82 /R putdup 83 /S putdup 84 /T putdup 85 /U putdup 86 /V putdup 87 /W putdup 88 /X putdup 89 /Y putdup 90 /Z putdup 91 /union putdup 92 /intersection putdup 93 /unionmulti putdup 94 /logicaland putdup 95 /logicalor putdup 96 /turnstileleft putdup 97 /turnstileright putdup 98 /floorleft putdup 99 /floorright putdup 100 /ceilingleft putdup 101 /ceilingright putdup 102 /braceleft putdup 103 /braceright putdup 104 /angbracketleft putdup 105 /angbracketright putdup 106 /bar putdup 107 /bardbl putdup 108 /arrowbothv putdup 109 /arrowdblbothv putdup 110 /backslash putdup 111 /wreathproduct putdup 112 /radical putdup 113 /coproduct putdup 114 /nabla putdup 115 /integral putdup 116 /unionsq putdup 117 /intersectionsq putdup 118 /subsetsqequal putdup 119 /supersetsqequal putdup 120 /section putdup 121 /dagger putdup 122 /daggerdbl putdup 123 /paragraph putdup 124 /club putdup 125 /diamond putdup 126 /heart putdup 127 /spade putdup 128 /arrowleft putreadonly def/FontBBox{-30 -955 1185 779}readonly def/UniqueID 5000818 defcurrentdict endcurrentfile 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