Nuprl Lemma : mccarthy91_wf
∀x:ℤ. (mccarthy91(x) ∈ {91...})
Proof
Definitions occuring in Statement : 
mccarthy91: mccarthy91(x), 
int_upper: {i...}, 
all: ∀x:A. B[x], 
member: t ∈ T, 
natural_number: $n, 
int: ℤ
Definitions unfolded in proof : 
top: Top, 
satisfiable_int_formula: satisfiable_int_formula(fmla), 
decidable: Dec(P), 
sq_stable: SqStable(P), 
not: ¬A, 
false: False, 
assert: ↑b, 
bnot: ¬bb, 
sq_type: SQType(T), 
or: P ∨ Q, 
exists: ∃x:A. B[x], 
bfalse: ff, 
guard: {T}, 
squash: ↓T, 
prop: ℙ, 
so_apply: x[s], 
so_lambda: λ2x.t[x], 
int_upper: {i...}, 
ifthenelse: if b then t else f fi , 
uimplies: b supposing a, 
and: P ∧ Q, 
uiff: uiff(P;Q), 
uall: ∀[x:A]. B[x], 
btrue: tt, 
it: ⋅, 
unit: Unit, 
bool: 𝔹, 
implies: P ⇒ Q, 
subtype_rel: A ⊆r B, 
member: t ∈ T, 
all: ∀x:A. B[x]
Lemmas referenced : 
int_term_value_subtract_lemma, 
itermSubtract_wf, 
int_formula_prop_wf, 
int_formula_prop_eq_lemma, 
int_term_value_var_lemma, 
int_term_value_constant_lemma, 
int_formula_prop_le_lemma, 
int_formula_prop_not_lemma, 
int_formula_prop_and_lemma, 
intformeq_wf, 
itermVar_wf, 
itermConstant_wf, 
intformle_wf, 
intformnot_wf, 
intformand_wf, 
full-omega-unsat, 
decidable__le, 
assert-bnot, 
bool_subtype_base, 
subtype_base_sq, 
bool_cases_sqequal, 
equal_wf, 
eqff_to_assert, 
sq_stable__equal, 
bool_wf, 
le_int_wf, 
le_wf, 
int_subtype_base, 
equal-wf-base, 
subtype_rel_sets, 
assert_of_le_int, 
eqtt_to_assert, 
mccarthy91_wf1
Rules used in proof : 
closedConclusion, 
baseApply, 
independent_pairFormation, 
voidEquality, 
isect_memberEquality, 
int_eqEquality, 
approximateComputation, 
voidElimination, 
independent_functionElimination, 
cumulativity, 
instantiate, 
promote_hyp, 
dependent_pairFormation, 
equalitySymmetry, 
equalityTransitivity, 
imageElimination, 
imageMemberEquality, 
applyLambdaEquality, 
setEquality, 
rename, 
setElimination, 
baseClosed, 
lambdaEquality, 
intEquality, 
sqequalRule, 
natural_numberEquality, 
independent_isectElimination, 
productElimination, 
isectElimination, 
equalityElimination, 
unionElimination, 
because_Cache, 
applyEquality, 
hypothesis, 
hypothesisEquality, 
thin, 
dependent_functionElimination, 
sqequalHypSubstitution, 
extract_by_obid, 
introduction, 
cut, 
lambdaFormation, 
sqequalReflexivity, 
computationStep, 
sqequalTransitivity, 
sqequalSubstitution
Latex:
\mforall{}x:\mBbbZ{}.  (mccarthy91(x)  \mmember{}  \{91...\})
Date html generated:
2018_05_21-PM-00_30_45
Last ObjectModification:
2017_12_27-PM-06_47_29
Theory : int_2
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