Step
*
of Lemma
TC-ind
∀[Dom:Type]. ∀[B:Dom ⟶ ℙ]. ∀[R:Dom ⟶ Dom ⟶ ℙ].
((∀x,y:Dom. ((R x y)
⇒ (B x)
⇒ (B y)))
⇒ (∀x,y:Dom. (TC(λa,b.R a b)(x,y)
⇒ (B x)
⇒ (B y))))
BY
{ Auto }
1
1. [Dom] : Type
2. [B] : Dom ⟶ ℙ
3. [R] : Dom ⟶ Dom ⟶ ℙ
4. ∀x,y:Dom. ((R x y)
⇒ (B x)
⇒ (B y))@i
5. x : Dom@i
6. y : Dom@i
7. TC(λa,b.R a b)(x,y)@i
8. B x@i
⊢ B y
Latex:
Latex:
\mforall{}[Dom:Type]. \mforall{}[B:Dom {}\mrightarrow{} \mBbbP{}]. \mforall{}[R:Dom {}\mrightarrow{} Dom {}\mrightarrow{} \mBbbP{}].
((\mforall{}x,y:Dom. ((R x y) {}\mRightarrow{} (B x) {}\mRightarrow{} (B y))) {}\mRightarrow{} (\mforall{}x,y:Dom. (TC(\mlambda{}a,b.R a b)(x,y) {}\mRightarrow{} (B x) {}\mRightarrow{} (B y))))
By
Latex:
Auto
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