Step
*
1
2
1
1
of Lemma
choice-iff-canonicalizable
1. T : Type
2. ∀P:T ⟶ ℙ. (∀t:T. ⇃(P[t])
⇐⇒ ⇃(∀t:T. P[t]))
3. ∀t:T. ∃x:Base. (t = x ∈ T)
4. f : t:T ⟶ Base
5. ∀t:T. (t = (f t) ∈ T)
⊢ canonicalizable(T)
BY
{ (D 0 With ⌜f⌝ THEN Try (Complete (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. \mforall{}t:T. \mexists{}x:Base. (t = x)
4. f : t:T {}\mrightarrow{} Base
5. \mforall{}t:T. (t = (f t))
\mvdash{} canonicalizable(T)
By
Latex:
(D 0 With \mkleeneopen{}f\mkleeneclose{} THEN Try (Complete (Auto)))
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