Nuprl Lemma : equiv-props_wf
∀[L:ℙ List]. (equiv-props(L) ∈ ℙ)
Proof
Definitions occuring in Statement : 
equiv-props: equiv-props(L)
, 
list: T List
, 
uall: ∀[x:A]. B[x]
, 
prop: ℙ
, 
member: t ∈ T
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
equiv-props: equiv-props(L)
, 
prop: ℙ
, 
so_lambda: λ2x.t[x]
, 
int_seg: {i..j-}
, 
uimplies: b supposing a
, 
lelt: i ≤ j < k
, 
and: P ∧ Q
, 
le: A ≤ B
, 
less_than: a < b
, 
squash: ↓T
, 
all: ∀x:A. B[x]
, 
decidable: Dec(P)
, 
or: P ∨ Q
, 
not: ¬A
, 
implies: P 
⇒ Q
, 
satisfiable_int_formula: satisfiable_int_formula(fmla)
, 
exists: ∃x:A. B[x]
, 
false: False
, 
top: Top
, 
so_apply: x[s]
Lemmas referenced : 
all_wf, 
int_seg_wf, 
length_wf, 
iff_wf, 
select_wf, 
int_seg_properties, 
decidable__le, 
full-omega-unsat, 
intformand_wf, 
intformnot_wf, 
intformle_wf, 
itermConstant_wf, 
itermVar_wf, 
istype-int, 
int_formula_prop_and_lemma, 
istype-void, 
int_formula_prop_not_lemma, 
int_formula_prop_le_lemma, 
int_term_value_constant_lemma, 
int_term_value_var_lemma, 
int_formula_prop_wf, 
decidable__lt, 
intformless_wf, 
int_formula_prop_less_lemma, 
list_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
Error :isect_memberFormation_alt, 
introduction, 
cut, 
sqequalRule, 
extract_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
thin, 
closedConclusion, 
natural_numberEquality, 
instantiate, 
universeEquality, 
hypothesisEquality, 
hypothesis, 
Error :lambdaEquality_alt, 
because_Cache, 
setElimination, 
rename, 
independent_isectElimination, 
productElimination, 
imageElimination, 
dependent_functionElimination, 
unionElimination, 
approximateComputation, 
independent_functionElimination, 
Error :dependent_pairFormation_alt, 
int_eqEquality, 
Error :isect_memberEquality_alt, 
voidElimination, 
independent_pairFormation, 
Error :universeIsType, 
Error :inhabitedIsType, 
axiomEquality, 
equalityTransitivity, 
equalitySymmetry
Latex:
\mforall{}[L:\mBbbP{}  List].  (equiv-props(L)  \mmember{}  \mBbbP{})
Date html generated:
2019_06_20-PM-01_50_10
Last ObjectModification:
2019_03_26-AM-10_21_04
Theory : list_1
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