Step
*
2
of Lemma
rel-star-iff-rel-plus-or
1. [T] : Type
2. [R] : T ⟶ T ⟶ ℙ
3. x : T@i
4. y : T@i
5. ∃n:ℕ+. (x R^n y)@i
⊢ ∃n:ℕ. (x R^n y)
BY
{ ParallelOp (-1) }
Latex:
Latex:
1. [T] : Type
2. [R] : T {}\mrightarrow{} T {}\mrightarrow{} \mBbbP{}
3. x : T@i
4. y : T@i
5. \mexists{}n:\mBbbN{}\msupplus{}. (x rel\_exp(T; R; n) y)@i
\mvdash{} \mexists{}n:\mBbbN{}. (x rel\_exp(T; R; n) y)
By
Latex:
ParallelOp (-1)
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