lean2/tests/lean/push.lean
Leonardo de Moura 08718e33dc refactor(builtin): only load the kernel and natural numbers by default
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-12-30 13:35:37 -08:00

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Import int.
Variable first : Bool
Push
Variables a b c : Int
Variable f : Int -> Int
Eval f a
Pop
Eval f a (* should produce an error *)
Show Environment 1
Push
Infixl 100 ++ : Int::add
Check 10 ++ 20
Pop
Check 10 ++ 20 (* should produce an error *)
Pop (* should produce an error *)