22 lines
787 B
Text
22 lines
787 B
Text
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690.hlean:10:2: error:invalid 'induction' tactic, invalid 'induction' tactic, argument #6 of major premise 'q' type is an index, but its type depends on the index at position #7
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proof state:
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A : Type,
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B : A → Type,
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u₁ : A,
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u₂ : B u₁,
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v₁ : A,
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v₂ : B v₁,
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p : ⟨u₁, u₂⟩.1 = ⟨v₁, v₂⟩.1,
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q : u₂ =[ p ] v₂
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⊢ ⟨(sigma_eq p q)..1, (sigma_eq p q)..2⟩ = ⟨p, q⟩
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690.hlean:12:0: error: don't know how to synthesize placeholder
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A : Type,
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B : A → Type,
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u v : Σ (a : A), B a,
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p : u.1 = v.1,
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q : u.2 =[ p ] v.2
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⊢ ⟨(sigma_eq p q)..1, (sigma_eq p q)..2⟩ = ⟨p, q⟩
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690.hlean:12:0: error: failed to add declaration 'dpair_sigma_eq' to environment, value has metavariables
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remark: set 'formatter.hide_full_terms' to false to see the complete term
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?M_1
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