3b38f71f11
We had to change subtype to use Sort since the axiom strong_indefinite_description uses it. see #1341
12 lines
407 B
Text
12 lines
407 B
Text
open tactic
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axiom Sorry : ∀ {A:Sort*}, A
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example (a b c : nat) (h₀ : c > 0) (h₁ : a > 1) (h₂ : b > 0) : a + b + c = 0 :=
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by do
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[x, y] ← match_target_subexpr `(λ x y : nat, x + y) | failed,
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trace "------ subterms -------",
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trace x, trace y,
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(h, [z]) ← match_hypothesis `(λ x : nat, x > 1) | failed,
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trace "--- hypothesis of the form x > 1 ---",
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trace h, trace z,
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refine `(Sorry)
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