58 lines
1.5 KiB
Text
58 lines
1.5 KiB
Text
set::option lean::parser::verbose false.
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notation 10 if _ then _ : implies.
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print environment 1.
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print if true then false.
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variable a : Bool.
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print if true then if a then false.
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set::option lean::pp::notation false.
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print if true then if a then false.
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variable A : Type.
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variable f : A -> A -> A -> Bool.
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notation 100 _ |- _ ; _ : f.
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print environment 1.
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variable c : A.
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variable d : A.
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variable e : A.
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print c |- d ; e.
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set::option lean::pp::notation true.
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print c |- d ; e.
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variable fact : A -> A.
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notation 20 _ ! : fact.
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print c! !.
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set::option lean::pp::notation false.
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print c! !.
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set::option lean::pp::notation true.
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variable g : A -> A -> A.
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notation 30 [ _ ; _ ] : g
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print [c;d].
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print [c ; [d;e] ].
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set::option lean::pp::notation false.
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print [c ; [d;e] ].
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set::option lean::pp::notation true.
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variable h : A -> A -> A.
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notation 40 _ << _ >> : h.
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print environment 1.
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print d << e >>.
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print [c ; d << e >> ].
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set::option lean::pp::notation false.
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print [c ; d << e >> ].
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set::option lean::pp::notation true.
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variable r : A -> A -> A.
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infixl 30 ++ : r.
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variable s : A -> A -> A.
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infixl 40 ** : s.
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print c ** d ++ e ** c.
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variable p1 : Bool.
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variable p2 : Bool.
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variable p3 : Bool.
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print p1 || p2 && p3.
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set::option lean::pp::notation false.
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print c ** d ++ e ** c.
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print p1 || p2 && p3.
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set::option lean::pp::notation true.
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print c = d || d = c.
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print not p1 || p2.
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print p1 && p3 || p2 && p3.
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set::option lean::pp::notation false.
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print not p1 || p2.
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print p1 && p3 || p2 && p3.
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