Step
*
1
of Lemma
fpf-sub-join-right
.....truecase.....
1. A : Type
2. B : A ⟶ Type
3. eq : EqDecider(A)
4. f : a:A fp-> B[a]
5. g : a:A fp-> B[a]
6. f || g
7. x : A
8. ↑x ∈ dom(g)
9. ↑x ∈ dom(f ⊕ g)
10. ↑x ∈ dom(f)
⊢ g(x) = f(x) ∈ B[x]
BY
{ xxxOnMaybeHyp 6 (\h. ((UnfoldTop `fpf-compatible` h) THEN (InstHyp [⌜x⌝] h)⋅ THEN Complete (Auto)))xxx }
Latex:
Latex:
.....truecase.....
1. A : Type
2. B : A {}\mrightarrow{} Type
3. eq : EqDecider(A)
4. f : a:A fp-> B[a]
5. g : a:A fp-> B[a]
6. f || g
7. x : A
8. \muparrow{}x \mmember{} dom(g)
9. \muparrow{}x \mmember{} dom(f \moplus{} g)
10. \muparrow{}x \mmember{} dom(f)
\mvdash{} g(x) = f(x)
By
Latex:
xxxOnMaybeHyp 6 (\mbackslash{}h. ((UnfoldTop `fpf-compatible` h)
THEN (InstHyp [\mkleeneopen{}x\mkleeneclose{}] h)\mcdot{}
THEN Complete (Auto)))xxx
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