Step
*
1
1
1
2
of Lemma
choice-iff-canonicalizable
1. T : Type
2. ∀P:T ⟶ ℙ. (∀t:T. ⇃(P[t])
⇐⇒ ⇃(∀t:T. P[t]))
3. t : Base
4. t1 : Base
5. t = t1 ∈ T
⊢ <t, Ax> = <t1, Ax> ∈ ⇃(∃x:Base. (t = x ∈ T))
BY
{ (EqTypeCD THEN Auto) }
Latex:
Latex:
1. T : Type
2. \mforall{}P:T {}\mrightarrow{} \mBbbP{}. (\mforall{}t:T. \00D9(P[t]) \mLeftarrow{}{}\mRightarrow{} \00D9(\mforall{}t:T. P[t]))
3. t : Base
4. t1 : Base
5. t = t1
\mvdash{} <t, Ax> = <t1, Ax>
By
Latex:
(EqTypeCD THEN Auto)
Home
Index