lean2/tests/lean/induct.lean.expected.out at d4b08fcf9680e4118ef1c9179b8700a9167512c4 - michael/lean2 - Forgejo: Beyond coding. We forge.

michael/lean2

Leonardo de Moura e4579b93e4 fix(library/elaborator): try first projection before imitation in the higher-order unifier

Projections build more general solutions. This commit also adds a test that demonstrates the issue. Before this commit, the elaborator would produce the "constant" predicate (fun x, a + b = b + a).

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

2014-02-06 13:35:05 -08:00

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   Set: pp::colors
   Set: pp::unicode
   Imported 'macros'
   Imported 'tactic'
   Using: Nat
 induct.lean:7:0: error: invalid tactic command, unexpected end of file
 Proof state:
 a : ℕ, b : ℕ, n : ℕ, iH : a + n = n + a ⊢ a + (n + 1) = n + 1 + a