Nuprl Lemma : FOQuantifier+_wf
∀[vs:ℤ List]. ∀[isall:𝔹].
  (FOQuantifier+(isall) ∈ z:ℤ ⟶ AbstractFOFormula+(vs) ⟶ AbstractFOFormula+(filter(λx.(¬b(x =z z));vs)))
Proof
Definitions occuring in Statement : 
FOQuantifier+: FOQuantifier+(isall)
, 
AbstractFOFormula+: AbstractFOFormula+(vs)
, 
filter: filter(P;l)
, 
list: T List
, 
bnot: ¬bb
, 
eq_int: (i =z j)
, 
bool: 𝔹
, 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
lambda: λx.A[x]
, 
function: x:A ⟶ B[x]
, 
int: ℤ
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
AbstractFOFormula+: AbstractFOFormula+(vs)
, 
FOQuantifier+: FOQuantifier+(isall)
, 
all: ∀x:A. B[x]
, 
implies: P 
⇒ Q
, 
bool: 𝔹
, 
unit: Unit
, 
it: ⋅
, 
btrue: tt
, 
uiff: uiff(P;Q)
, 
and: P ∧ Q
, 
uimplies: b supposing a
, 
ifthenelse: if b then t else f fi 
, 
so_lambda: λ2x.t[x]
, 
so_apply: x[s]
, 
prop: ℙ
, 
FOStruct+: FOStruct+{i:l}(Dom)
, 
FOStruct: FOStruct(Dom)
, 
subtype_rel: A ⊆r B
, 
bfalse: ff
, 
exists: ∃x:A. B[x]
Lemmas referenced : 
eqtt_to_assert, 
b-union_wf, 
all_wf, 
FOSatWith+_wf, 
update-assignment_wf, 
nil_wf, 
FOAssignment_wf, 
filter_wf5, 
l_member_wf, 
bnot_wf, 
eq_int_wf, 
FOStruct+_wf, 
uiff_transitivity, 
equal-wf-T-base, 
bool_wf, 
assert_wf, 
not_wf, 
eqff_to_assert, 
assert_of_bnot, 
exists_wf, 
equal_wf, 
list_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
sqequalRule, 
hypothesisEquality, 
thin, 
because_Cache, 
lambdaFormation, 
sqequalHypSubstitution, 
unionElimination, 
equalityElimination, 
extract_by_obid, 
isectElimination, 
hypothesis, 
productElimination, 
independent_isectElimination, 
lambdaEquality, 
cumulativity, 
applyEquality, 
setElimination, 
rename, 
tokenEquality, 
intEquality, 
setEquality, 
universeEquality, 
functionEquality, 
baseClosed, 
independent_functionElimination, 
equalityTransitivity, 
equalitySymmetry, 
dependent_functionElimination, 
axiomEquality, 
isect_memberEquality
Latex:
\mforall{}[vs:\mBbbZ{}  List].  \mforall{}[isall:\mBbbB{}].
    (FOQuantifier+(isall)  \mmember{}  z:\mBbbZ{}
      {}\mrightarrow{}  AbstractFOFormula+(vs)
      {}\mrightarrow{}  AbstractFOFormula+(filter(\mlambda{}x.(\mneg{}\msubb{}(x  =\msubz{}  z));vs)))
Date html generated:
2018_05_21-PM-10_20_41
Last ObjectModification:
2017_07_26-PM-06_37_34
Theory : minimal-first-order-logic
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