23 lines
717 B
Text
23 lines
717 B
Text
structure FoldImpl (α β : Type u) where
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γ : Type u
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x₀ : γ
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f : γ → α → γ
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out : γ → β
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inductive R : FoldImpl α β → FoldImpl α β → Prop where
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| intro {γ γ' x₀ y₀ f g out out'} : R ⟨γ, x₀, f, out⟩ ⟨γ', y₀, g, out'⟩
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#print R
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#check R.intro
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-- @R.intro : ∀ {α β γ γ' : Type u_1} {x₀ : γ} {y₀ : γ'} {f : γ → α → γ} {g : γ' → α → γ'} {out : γ → β} {out' : γ' → β},
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-- R { γ := γ, x₀ := x₀, f := f, out := out } { γ := γ', x₀ := y₀, f := g, out := out' }
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namespace Ex2
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inductive R : FoldImpl α β → FoldImpl α β → Prop where
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| intro : R ⟨γ, x₀, f, out⟩ ⟨γ', y₀, g, out'⟩
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#print R
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end Ex2
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