Step
*
of Lemma
fpf-restrict-compatible
∀[A:Type]. ∀[P:A ─→ 𝔹]. ∀[eq:EqDecider(A)]. ∀[B:A ─→ Type]. ∀[f,g:x:A fp-> B[x]].
fpf-restrict(f;P) || g supposing f || g
BY
{ ((Unfold `fpf-compatible` 0 THEN Reduce 0)
THEN Auto
THEN (BackThruSomeHyp THEN Auto)
THEN FLemma `fpf-restrict-dom` [-2]
THEN Auto) }
Latex:
\mforall{}[A:Type]. \mforall{}[P:A {}\mrightarrow{} \mBbbB{}]. \mforall{}[eq:EqDecider(A)]. \mforall{}[B:A {}\mrightarrow{} Type]. \mforall{}[f,g:x:A fp-> B[x]].
fpf-restrict(f;P) || g supposing f || g
By
((Unfold `fpf-compatible` 0 THEN Reduce 0)
THEN Auto
THEN (BackThruSomeHyp THEN Auto)
THEN FLemma `fpf-restrict-dom` [-2]
THEN Auto)
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