Step
*
1
of Lemma
fpf-sub-compatible-right
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. ∀x:A. ((↑x ∈ dom(g))
⇒ ((↑x ∈ dom(f)) c∧ (g(x) = f(x) ∈ B[x])))
7. x : A
8. ↑x ∈ dom(f)
9. ↑x ∈ dom(g)
⊢ f(x) = g(x) ∈ B[x]
BY
{ xxx((InstHyp [⌜x⌝] (-4))⋅ THEN Auto THEN ExRepD THEN Auto)xxx }
Latex:
Latex:
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. \mforall{}x:A. ((\muparrow{}x \mmember{} dom(g)) {}\mRightarrow{} ((\muparrow{}x \mmember{} dom(f)) c\mwedge{} (g(x) = f(x))))
7. x : A
8. \muparrow{}x \mmember{} dom(f)
9. \muparrow{}x \mmember{} dom(g)
\mvdash{} f(x) = g(x)
By
Latex:
xxx((InstHyp [\mkleeneopen{}x\mkleeneclose{}] (-4))\mcdot{} THEN Auto THEN ExRepD THEN Auto)xxx
Home
Index