lean2/tests/lean/tst10.lean
Leonardo de Moura 57c0006916 chore(*): cleanup lean builtin symbols, replace :: with _
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-01-09 08:33:52 -08:00

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variable a : Bool
variable b : Bool
-- Conjunctions
print a && b
print a && b && a
print a /\ b
print a ∧ b
print (and a b)
print and a b
-- Disjunctions
print a || b
print a \/ b
print a b
print (or a b)
print or a (or a b)
-- Simple Formulas
print a → b → a
check a → b
eval a → a
eval true → a
-- Simple proof
axiom H1 : a
axiom H2 : a → b