10 lines
439 B
Text
10 lines
439 B
Text
axiom foo {p : Prop} {x : BitVec 32} (h : (!x == x + 0#32) = true) : p
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theorem add_eq_sub_not_sub_one (x : BitVec 32) (h : (!x == x + (1#32 + 4294967295#32)) = true) : False := by
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simp only [BitVec.reduceAdd] at h
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exact foo h -- this works
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theorem add_eq_sub_not_sub_one' (x : BitVec 32) (h : (!x == x + 1#32 + 4294967295#32) = true) : False := by
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ac_nf0 at h
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simp only [BitVec.reduceAdd] at h
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exact foo h -- this used to hang
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