lean2/tests/lean/elab3.lean
Leonardo de Moura edafd519e1 Add missing case to elaborator
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
2013-09-06 17:43:08 -07:00

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Variable C : Pi (A B : Type) (H : A = B) (a : A), B
Variable D : Pi (A A' : Type) (B : A -> Type) (B' : A' -> Type) (H : (Pi x : A, B x) = (Pi x : A', B' x)), A = A'
Variable R : Pi (A A' : Type) (B : A -> Type) (B' : A' -> Type) (H : (Pi x : A, B x) = (Pi x : A', B' x)) (a : A),
(B a) = (B' (C A A' (D A A' B B' H) a))
Theorem R2 : Pi (A1 A2 B1 B2 : Type) (H : A1 -> B1 = A2 -> B2) (a : A1), B1 = B2 :=
fun A1 A2 B1 B2 H a,
R _ _ _ _ H a
Show Environment 1.