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lean4-htt/tests/lean/1235.lean
Leonardo de Moura e442fbbf54 fix: remove kabstractWithPred 
The function `kabstractWithPred` was never used, and introduced the
bug exposed by issue #1235.

fixes #1235
2022-06-20 16:35:18 -07:00

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opaque f (a b : Nat) : Nat
example : f 1 2 = f 2 1 := by
generalize h : f 1 = g
/- g : ℕ → ℕ
h : f 1 = g
⊢ g 2 = f 2 1 -/
trace_state
sorry
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