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gf-book web page index and toc

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aarne
2011-01-11 15:46:43 +00:00
parent 276327f7f2
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13
gf-book/examples/chapter9/LogicSymb.gf Normal file
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concrete LogicSymb of Logic = open Formal, Prelude in {
lincat
Prop, Ind = TermPrec ;
lin
And = infixl 2 "\\&" ;
Or = infixl 2 "\\vee" ;
If = infixr 1 "\\sup" ;
Not = prefix 3 "\\sim" ;
All P = prefix 3 (parenth ("\\forall" ++ P.$0)) P ;
Exist P = prefix 3 (parenth ("\\exists" ++ P.$0)) P ;
Past = prefix 3 "P" ;
}