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22 lines
464 B
Plaintext
22 lines
464 B
Plaintext
--# -path=.:prelude
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concrete FormulaSymb of Formula = open Precedence in {
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lincat
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Formula, Term = PrecExp ;
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lin
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And = infixL 3 "&" ;
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Or = infixL 2 "v" ;
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If = infixR 1 "->" ;
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Not = prefixR 4 "~" ;
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Abs = constant "_|_" ;
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---- All P = mkPrec 4 PR (paren ("All" ++ P.$0) ++ usePrec P 4) ;
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---- Exist P = mkPrec 4 PR (paren ("Ex" ++ P.$0) ++ usePrec P 4) ;
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A = constant "A" ;
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B = constant "B" ;
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C = constant "C" ;
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} |