lean2/tests/lean/interactive/class_bug.lean
Leonardo de Moura e51c4ad2e9 feat(frontends/lean): rename 'using' command to 'open'
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2014-09-03 16:00:38 -07:00

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import logic.axioms.hilbert data.nat.basic
open nonempty inhabited nat
theorem int_inhabited [instance] : inhabited nat := inhabited_mk zero
check epsilon (λ x : nat, true)