Pengi: An Implementation of a Theory of Activity (1987) [pdf]

4 days ago 2

%PDF-1.4 %???? 1 0 obj << /MediaBox [ 0 0 594 744 ] /Type /Page /Parent 831 0 R /Resources << /Font << /F0 842 0 R /F1 840 0 R /F3 849 0 R /F4 858 0 R /F5 825 0 R >> /XObject 2 0 R /ProcSet 865 0 R >> /Contents 3 0 R /CropBox [ 0 0 594 744 ] /Rotate 0 >> endobj 2 0 obj << /im54 862 0 R /im55 862 0 R /im56 862 0 R /im57 862 0 R /im58 113 0 R /im59 115 0 R /im60 117 0 R /im61 119 0 R /im62 121 0 R /im63 123 0 R /im64 125 0 R /im65 127 0 R /im66 129 0 R /im67 131 0 R /im68 133 0 R /im69 135 0 R /im70 137 0 R /im71 139 0 R /im72 141 0 R /im73 143 0 R /im74 145 0 R /im75 147 0 R /im76 149 0 R /im77 151 0 R /im78 153 0 R /im79 155 0 R /im80 157 0 R /im81 159 0 R /im82 161 0 R /im83 163 0 R /im84 165 0 R /im85 167 0 R /im86 169 0 R /im87 171 0 R /im88 173 0 R /im89 175 0 R /im90 177 0 R /im91 179 0 R /im92 181 0 R /im93 183 0 R /im94 185 0 R /im95 187 0 R /im96 189 0 R /im97 191 0 R /im98 193 0 R /im99 195 0 R /im100 197 0 R /im101 862 0 R /im102 862 0 R /im103 199 0 R /im104 201 0 R /im105 862 0 R /im106 203 0 R >> endobj 3 0 obj [ 5 0 R 7 0 R 9 0 R 11 0 R 13 0 R 15 0 R 17 0 R 19 0 R 21 0 R 23 0 R 25 0 R 27 0 R 29 0 R 31 0 R 33 0 R 35 0 R 37 0 R 39 0 R 41 0 R 43 0 R 45 0 R 47 0 R 49 0 R 51 0 R 53 0 R 55 0 R 57 0 R 59 0 R 61 0 R 63 0 R 65 0 R 67 0 R 69 0 R 71 0 R 73 0 R 75 0 R 77 0 R 79 0 R 81 0 R 83 0 R 85 0 R 87 0 R 89 0 R 91 0 R 93 0 R 95 0 R 97 0 R 99 0 R 101 0 R 103 0 R 105 0 R 107 0 R 109 0 R 111 0 R ] endobj 4 0 obj 49 endobj 5 0 obj << /Filter /FlateDecode /Length 4 0 R >> stream ?w?;??^4?y}??a2zt?"n/ ???I?????2jQ?AsP?@? endstream endobj 6 0 obj 50 endobj 7 0 obj << /Filter /FlateDecode /Length 6 0 R >> stream ?~??Z??[<??|??????q????\6F0?????_M'k(?q?? endstream endobj 8 0 obj 49 endobj 9 0 obj << /Filter /FlateDecode /Length 8 0 R >> stream ž?M?????׺g^?????F? tѾ?o?X???&)?J?E???? endstream endobj 10 0 obj 52 endobj 11 0 obj << /Filter /FlateDecode /Length 10 0 R >> stream ?kߒ??|PO?&?q3?H??R?e2\?#2??7??Lc]Y?F?s?EE?W31[ endstream endobj 12 0 obj 52 endobj 13 0 obj << /Filter /FlateDecode /Length 12 0 R >> stream ????K?,Z?????7N:??? ?^9r`%Xd?R?J\?gL? ??L?|e endstream endobj 14 0 obj 52 endobj 15 0 obj << /Filter /FlateDecode /Length 14 0 R >> stream D?ϞI?Xc탽???+???ds??șc䱠"??i?61~Z? ?? {??]?p? endstream endobj 16 0 obj 52 endobj 17 0 obj << /Filter /FlateDecode /Length 16 0 R >> stream ?????*??eҧ3?D???f0>???˭?y???V???_wVbh??^T?? endstream endobj 18 0 obj 51 endobj 19 0 obj << /Filter /FlateDecode /Length 18 0 R >> stream ??*?d???&??H@???;ǭ??͟??n„?????;?`??PB?jR"?p endstream endobj 20 0 obj 52 endobj 21 0 obj << /Filter /FlateDecode /Length 20 0 R >> stream 5???J??%zw?M?<+?i??o?R:?qJ??;?Vy??0Xf(/rq??? endstream endobj 22 0 obj 52 endobj 23 0 obj << /Filter /FlateDecode /Length 22 0 R >> stream ? :?Ƥ-?N?ͮ???? ????q??W?e??????NlV9_??;?? endstream endobj 24 0 obj 52 endobj 25 0 obj << /Filter /FlateDecode /Length 24 0 R >> stream ??????*?Vܧ?K??,?%0K??_???M??Ko2?>??90%?J? endstream endobj 26 0 obj 52 endobj 27 0 obj << /Filter /FlateDecode /Length 26 0 R >> stream C?xlg?w*???<+?9??5?2???????0?k,>?P??+v֌M?]ۨ endstream endobj 28 0 obj 51 endobj 29 0 obj << /Filter /FlateDecode /Length 28 0 R >> stream #x ???? ̡h??9?.????(?g??????&??.???b?1?) endstream endobj 30 0 obj 52 endobj 31 0 obj << /Filter /FlateDecode /Length 30 0 R >> stream ????(????K?v?$z=[?u?P??M??:?w??L?z????ǰ??x?? endstream endobj 32 0 obj 52 endobj 33 0 obj << /Filter /FlateDecode /Length 32 0 R >> stream `????6?ټ??к3??Ћ3???L???6?g??n?k??o{???F??%/> endstream endobj 34 0 obj 52 endobj 35 0 obj << /Filter /FlateDecode /Length 34 0 R >> stream ӫ`p?rx?2Y??X?ģ???@gY??)fJ4????LEO;????3'??`? endstream endobj 36 0 obj 52 endobj 37 0 obj << /Filter /FlateDecode /Length 36 0 R >> stream ??`?????[d?? ????H?J4???\??&??q????C?`a?δ endstream endobj 38 0 obj 51 endobj 39 0 obj << /Filter /FlateDecode /Length 38 0 R >> stream ?Y OU?eD0E#?J????opK???)?D?+)?*A????7T??"?????? endstream endobj 40 0 obj 52 endobj 41 0 obj << /Filter /FlateDecode /Length 40 0 R >> stream ?ɘ?=?iֺ?[????ʠ#?he??dk?6?t?0??iճ???x endstream endobj 42 0 obj 50 endobj 43 0 obj << /Filter /FlateDecode /Length 42 0 R >> stream ??I;??{?낈E??}}??%{??҆+?D0?l??0?q???⹸T endstream endobj 44 0 obj 52 endobj 45 0 obj << /Filter /FlateDecode /Length 44 0 R >> stream a???"q/=L????Q??6?[?ű9???;???%?#???n?,??53( endstream endobj 46 0 obj 52 endobj 47 0 obj << /Filter /FlateDecode /Length 46 0 R >> stream ?B?ƩҪ?m??9??????͌p?['?? ?aE?~FV\??Ս?d[?*_yj] endstream endobj 48 0 obj 51 endobj 49 0 obj << /Filter /FlateDecode /Length 48 0 R >> stream ?3????-? 0???}pV-??*^??#???M??Vs???6`Ȫ}???(?y? endstream endobj 50 0 obj 52 endobj 51 0 obj << /Filter /FlateDecode /Length 50 0 R >> stream ???? ???bp??]o???p⡃??L??(d`x?7 ?? _Ϊ??l'@? endstream endobj 52 0 obj 52 endobj 53 0 obj << /Filter /FlateDecode /Length 52 0 R >> stream 2T?x?3???r??#???C3????߮?Jv??ي, ??ܞ???? endstream endobj 54 0 obj 52 endobj 55 0 obj << /Filter /FlateDecode /Length 54 0 R >> stream ?R??H??i?(??Ao;?V????߹m#?'?}d#??a,? ?Y?By?)E?|? endstream endobj 56 0 obj 50 endobj 57 0 obj << /Filter /FlateDecode /Length 56 0 R >> stream ??lio1!V/}?%S?l?x??ǁ??2? ??Y??-??۫j?β?4?6 endstream endobj 58 0 obj 49 endobj 59 0 obj << /Filter /FlateDecode /Length 58 0 R >> stream ???? ??b???ob????'C??5-?????}?]o2??? ?I?????? endstream endobj 60 0 obj 52 endobj 61 0 obj << /Filter /FlateDecode /Length 60 0 R >> stream ?ºSiy~}?????:ߣ5?Sq?a??;:?q3l??iUn`?*G!&?h? endstream endobj 62 0 obj 52 endobj 63 0 obj << /Filter /FlateDecode /Length 62 0 R >> stream U0'f????[c_]???r????*??1DP?X?#W?@??7?_zo>??~n?T?? endstream endobj 64 0 obj 52 endobj 65 0 obj << /Filter /FlateDecode /Length 64 0 R >> stream ?Y???t(BgQH"?T?$??7? ????+?Af?V??"?G?? endstream endobj 66 0 obj 52 endobj 67 0 obj << /Filter /FlateDecode /Length 66 0 R >> stream ?9?*??+????ˆ:????oG??nRp???? V????л?2C?td?x endstream endobj 68 0 obj 51 endobj 69 0 obj << /Filter /FlateDecode /Length 68 0 R >> stream ː8@??Ƹ?䋜~???^-? p???s1??b?F????-?E?????? endstream endobj 70 0 obj 52 endobj 71 0 obj << /Filter /FlateDecode /Length 70 0 R >> stream ۃ?ˆܤ3[?59?????ܖ??c?1?)??S??+?ܶa?&??=?{ݎ? N endstream endobj 72 0 obj 51 endobj 73 0 obj << /Filter /FlateDecode /Length 72 0 R >> stream ?=??|??8?:E???SB?DL??8D?? {?=6T???eH?H???mJl? endstream endobj 74 0 obj 52 endobj 75 0 obj << /Filter /FlateDecode /Length 74 0 R >> stream ?d?{>A?'??\??.!???+? ??Ґk???rR???g?Zqm?F8?8ԙ2 endstream endobj 76 0 obj 52 endobj 77 0 obj << /Filter /FlateDecode /Length 76 0 R >> stream ???5???_*u?v??l [9??=??y?0?2hl???:?"?'DMû?w= endstream endobj 78 0 obj 51 endobj 79 0 obj << /Filter /FlateDecode /Length 78 0 R >> stream Ӥ?x??/m?z/?*?5?g?X]Q??1xEE?ge?̟?a?ݱ?`?>?KS; endstream endobj 80 0 obj 51 endobj 81 0 obj << /Filter /FlateDecode /Length 80 0 R >> stream ??b?I?OyJw`? 5?i????޺ +?3????۳?O"?2,?Eo?fEo??I? endstream endobj 82 0 obj 51 endobj 83 0 obj << /Filter /FlateDecode /Length 82 0 R >> stream x?B?z??gdt??ѥ???&?ֵb2??????}?C??????Е?? ћ endstream endobj 84 0 obj 51 endobj 85 0 obj << /Filter /FlateDecode /Length 84 0 R >> stream ??d3f?-?^[?C?"X?ࠪ̏???n?;oӎ??Xֲo F? ?l?;f endstream endobj 86 0 obj 50 endobj 87 0 obj << /Filter /FlateDecode /Length 86 0 R >> stream l?dU??8?I??(?1R??(?&%???i$?????1??HIv7A? endstream endobj 88 0 obj 50 endobj 89 0 obj << /Filter /FlateDecode /Length 88 0 R >> stream T'Ȣ?k??s??޶??? ?I?un~?+??9_?wF?*@???;\?? endstream endobj 90 0 obj 51 endobj 91 0 obj << /Filter /FlateDecode /Length 90 0 R >> stream #???/J9??H@)??? X?1?7P??=9????z??[???@?,{n\? endstream endobj 92 0 obj 49 endobj 93 0 obj << /Filter /FlateDecode /Length 92 0 R >> stream ?n;?H??'?Å???Is??>F?a[???S?t?????&}???/M?W endstream endobj 94 0 obj 50 endobj 95 0 obj << /Filter /FlateDecode /Length 94 0 R >> stream ???>??ǩΞy?Eh???gR?w???•ȏ?H?@ER&?????Ou7 endstream endobj 96 0 obj 52 endobj 97 0 obj << /Filter /FlateDecode /Length 96 0 R >> stream ?.8|????6r???]?l??<?r ??Z ?'??bULVR??q??{?1??i??? endstream endobj 98 0 obj 51 endobj 99 0 obj << /Filter /FlateDecode /Length 98 0 R >> stream ??m??????N?-??C?? H~?s?QvS?s ?? ???#Jni?C???? endstream endobj 100 0 obj 52 endobj 101 0 obj << /Filter /FlateDecode /Length 100 0 R >> stream ?U!??fq}DZ٥?)?LD+?g??7?;>?p?U???UG+?h?؂f endstream endobj 102 0 obj 52 endobj 103 0 obj << /Filter /FlateDecode /Length 102 0 R >> stream njl?fG4"?,?D?&??l|}??Kᵽ1c??> stream ???q'{??`v??vW?????? 2,?ս???(> stream ¿???????J?1?8?x3vrp?????;???I?$b? ?XH??D?I?o? endstream endobj 108 0 obj 50 endobj 109 0 obj << /Filter /FlateDecode /Length 108 0 R >> stream 7C?A@?>L??=%?ɂ?? ?l~??H.?? k???P/) ?A?8?ɛy endstream endobj 110 0 obj 10874 endobj 111 0 obj << /Filter /FlateDecode /Length 110 0 R >> stream ]iŵ???w??VW?ZP(???Q?{6??`ǥ?⩓h??q????m?????I????XD?zK?{??H?;[??b?=X??>`?m?$?1I???g4???:?{|??X?=?ꚦ??&M?z??7?=YG??#>? ??H???Xzl?S{K\?SU???< G??P*J???????E?:[?I? ????P?ݏ??.?c??4??Ltb??LVB?6??T???o??+?E????@`?`/?j`???XY?%c9?hkǭk*?z㍦Ίk?=B\?K??"/ "???GW=?@M??????\???ɴ*??/????GCJs????B?K?S+??*(PqNd?s???q=????W???K??#????J}??\???4乩w{KTX^??vP?<u+$??{|7?NwhSฆ4??½w?Z?J+<?F??7?nw?? P(gPY??r W??=9??>A?HŪ5P???IAw?2E󓁰?(???tyZ{??\Z?ߘ??????????.~??E??'ގ?q?"?L?3???.}?L'#?9????x?y j?6d:9?eD?]bo???YD??XC???!?ty&?ٷE? ??@???Bڊ ??HC#`?.Ù??e??u????$?ev??y?ϓ??'???&?k??N?T???4?uy] C?q?ؘ??+?~.|H(?3#<ǖ?9I˶?\???7???F&?'&?t??J&_lN?0Gx?ˡ??ރ RW ????\O???jo?y?N?K?܀??s?ߖ?'?F? &O?0?-ۄ̽??‡e?j??b_0Q??]?Ј?<kX??j "???wYO$¾sN??ӥW?w˵??o??((g??z$!??t?JA?FŷK?A??g?_???Ly?q?^??gU?{???ߕd?VB??M`k*??}?????,n???*<?fI ???a'?}?In??????????|??,S??)??k?e)?A;>??l??ǘ?!?L~??4?93??AM???&??+???CRgѭS$?ڿ??P?H ?!? :O?V??-hQ?W>a2-???otWz ???9?~P?'{?8$I*??kb4@E??yU??L?9???:?? ?άJ??m??7??1E?_8?Z???KPv?y?l$AK?d'o??54D???H????8??^ߑ? E?[HNO8?5?:??6xf?a??5C?? ??D????????0b?????FXF:Q$???{V??֕???nG???:?G??ʕ?????k?_?}???K]??G??O???qp^????????i??p"??F??_????Vu?s?pe??(????J?yb???????g?W?d+w?1PՍ¼a??l1?o?X,?~#L? ??,?0)?>?sX? 'j?? ??t?1o?oKU?I*l?D???b??&?B?˵?֋????i??Ƥ"C?gXU?H,]d??N |֬?,TKT?1?????+ ??τ?EC?A=F?q?<?R ???d??Z??'\GBjp??;?zہc_~??촫?[?SPח

Read Entire Article