10 lines
222 B
Text
10 lines
222 B
Text
example : n.succ = 1 → n = 0 := by
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intros h; injection h
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example (h : n.succ = 1) : n = 0 := by
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injection h
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opaque T : Type
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opaque T.Pred : T → T → Prop
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example {ρ} (hρ : ρ.Pred σ) : T.Pred ρ ρ := sorry
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