Step
*
1
1
of Lemma
prior-val-induction
1. [Info] : Type
2. [T] : Type
3. es : EO+(Info)@i'
4. X : EClass(T)@i'
5. [P] : T ─→ ℙ
6. ∀e:E(X). (P[X(e)] supposing ¬↑e ∈b (X)' ∧ P[(X)'(e)]
⇒ P[X(e)] supposing ↑e ∈b (X)')@i
7. e : E(X)@i
8. ↑e ∈b X
⊢ P[X(e)]
BY
{ ((D (-2) THEN Thin (-2)) THEN RepeatFor 2 (MoveToConcl (-1))) }
1
1. [Info] : Type
2. [T] : Type
3. es : EO+(Info)@i'
4. X : EClass(T)@i'
5. [P] : T ─→ ℙ
6. ∀e:E(X). (P[X(e)] supposing ¬↑e ∈b (X)' ∧ P[(X)'(e)]
⇒ P[X(e)] supposing ↑e ∈b (X)')@i
⊢ ∀e:E. ((↑e ∈b X)
⇒ P[X(e)])
Latex:
Latex:
1. [Info] : Type
2. [T] : Type
3. es : EO+(Info)@i'
4. X : EClass(T)@i'
5. [P] : T {}\mrightarrow{} \mBbbP{}
6. \mforall{}e:E(X). (P[X(e)] supposing \mneg{}\muparrow{}e \mmember{}\msubb{} (X)' \mwedge{} P[(X)'(e)] {}\mRightarrow{} P[X(e)] supposing \muparrow{}e \mmember{}\msubb{} (X)')@i
7. e : E(X)@i
8. \muparrow{}e \mmember{}\msubb{} X
\mvdash{} P[X(e)]
By
Latex:
((D (-2) THEN Thin (-2)) THEN RepeatFor 2 (MoveToConcl (-1)))
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