Nuprl Lemma : fpf-compatible-update3
∀[A:Type]. ∀[eq:EqDecider(A)]. ∀[B:A ⟶ Type]. ∀[f,g,h:a:A fp-> B[a]]. h ⊕ f || h ⊕ g supposing f || g
Proof
Definitions occuring in Statement :
fpf-join: f ⊕ g,
fpf-compatible: f || g,
fpf: a:A fp-> B[a],
deq: EqDecider(T),
uimplies: b supposing a,
uall: ∀[x:A]. B[x],
so_apply: x[s],
function: x:A ⟶ B[x],
universe: Type
Definitions unfolded in proof :
and: P ∧ Q,
member: t ∈ T,
uall: ∀[x:A]. B[x],
so_lambda: λ2x.t[x],
so_apply: x[s],
subtype_rel: A ⊆r B,
uimplies: b supposing a,
all: ∀x:A. B[x],
top: Top,
prop: ℙ,
fpf-compatible: f || g,
implies: P ⇒ Q,
iff: P ⇐⇒ Q,
or: P ∨ Q,
not: ¬A,
false: False,
cand: A c∧ B,
bool: 𝔹,
unit: Unit,
it: ⋅,
btrue: tt,
uiff: uiff(P;Q),
ifthenelse: if b then t else f fi ,
bfalse: ff
Lemmas referenced :
assert_wf,
fpf-dom_wf,
fpf-join_wf,
top_wf,
subtype-fpf2,
fpf-compatible_wf,
fpf_wf,
deq_wf,
bool_wf,
fpf-ap_wf,
equal-wf-T-base,
bnot_wf,
not_wf,
fpf-join-dom,
fpf-join-ap-sq,
eqtt_to_assert,
uiff_transitivity,
eqff_to_assert,
assert_of_bnot,
equal_wf
Rules used in proof :
sqequalSubstitution,
sqequalTransitivity,
computationStep,
sqequalReflexivity,
productEquality,
cut,
introduction,
extract_by_obid,
sqequalHypSubstitution,
isectElimination,
thin,
cumulativity,
hypothesisEquality,
because_Cache,
sqequalRule,
lambdaEquality,
hypothesis,
applyEquality,
functionExtensionality,
independent_isectElimination,
lambdaFormation,
isect_memberEquality,
voidElimination,
voidEquality,
functionEquality,
universeEquality,
isect_memberFormation,
dependent_functionElimination,
axiomEquality,
equalityTransitivity,
equalitySymmetry,
productElimination,
baseClosed,
independent_functionElimination,
unionElimination,
independent_pairFormation,
equalityElimination
Latex:
\mforall{}[A:Type]. \mforall{}[eq:EqDecider(A)]. \mforall{}[B:A {}\mrightarrow{} Type]. \mforall{}[f,g,h:a:A fp-> B[a]].
h \moplus{} f || h \moplus{} g supposing f || g
Date html generated:
2018_05_21-PM-09_28_45
Last ObjectModification:
2018_02_09-AM-10_23_55
Theory : finite!partial!functions
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