Step
*
1
1
2
of Lemma
all-quotient-true3
1. T : Type@i'
2. f : T ⟶ Base@i
3. ∀x:T. ((f x) = x ∈ T)@i
4. P : T ⟶ ℙ@i'
5. ∀t:T ⋂ Base. ⇃(P[t])
⇐⇒ ⇃(∀t:T ⋂ Base. P[t])
6. ⇃(∀t:T. P[t])@i
⊢ ∀t:T. ⇃(P[t])
BY
{ (Auto THEN (Assert ⌜(∀t:T. P[t])
⇒ P[t]⌝⋅ THEN Auto) THEN FLemma `implies-quotient-true` [-1] THEN Auto) }
Latex:
Latex:
1. T : Type@i'
2. f : T {}\mrightarrow{} Base@i
3. \mforall{}x:T. ((f x) = x)@i
4. P : T {}\mrightarrow{} \mBbbP{}@i'
5. \mforall{}t:T \mcap{} Base. \00D9(P[t]) \mLeftarrow{}{}\mRightarrow{} \00D9(\mforall{}t:T \mcap{} Base. P[t])
6. \00D9(\mforall{}t:T. P[t])@i
\mvdash{} \mforall{}t:T. \00D9(P[t])
By
Latex:
(Auto
THEN (Assert \mkleeneopen{}(\mforall{}t:T. P[t]) {}\mRightarrow{} P[t]\mkleeneclose{}\mcdot{} THEN Auto)
THEN FLemma `implies-quotient-true` [-1]
THEN Auto)
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