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master > master: codego - iff

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RD
2021-05-15 00:05:03 +02:00
parent 9b225b0551
commit 79bfcf57bb
5 changed files with 24 additions and 4 deletions
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11
codego/grammars/aussagenlogik.g4
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@@ -12,13 +12,14 @@ RCURLYBRACE: '}';
SYMB_NOT: ('!'|'~'|'not');
SYMB_AND: ('&'+|'^'|'and');
SYMB_OR: ('|'+|'v'|'or');
SYMB_IMPL: ('->'|'=>');
SYMB_IFF: ([<][-]+[>]|[<][=]+[>]|'iff');
SYMB_IMPL: (~[<][-]+[>]|~[<][=]+[>]);
// Rules
start: open <EOF> | closed <EOF>;
closed: atomic | not | LBRACE open RBRACE;
open: and2 | and | or2 | or | implies;
open: and2 | and | or2 | or | implies | iff;
// Schemata für atomische Ausdrücke
atomic: taut | contradiction | atom; //| generic;
@@ -26,8 +27,8 @@ taut: ('1'|'true');
contradiction: ('0'|'false');
atom: 'A0' | 'A1' | 'A' NUMBER; // muss A0, A1 wegen falsum/verum extra auflisten
// // als 'generische' Formeln schreibe bspw. {F}, {G}, {F1}, usw.
// // generic: LCURLYBRACE (.*?) RCURLYBRACE;
// FIXME: dieses Schema führt zu Konflikten
// generic: LCURLYBRACE (~[{])+ RCURLYBRACE;
// // FIXME: dieses Schema führt zu Konflikten
// Schema für Negation: ¬ F
not: symb=SYMB_NOT closed;
@@ -39,3 +40,5 @@ or2: closed symb=SYMB_OR closed;
or: ( closed ( symb=SYMB_OR closed )+ );
// Schema für Implikation: F1 ⟶ F2
implies: closed symb=SYMB_IMPL closed;
// Schema für Implikation: F1 ⟷ F2
iff: closed symb=SYMB_IFF closed;