Nuprl Lemma : weak-continuity-bool-bool
weak-continuity(𝔹;𝔹)
Proof
Definitions occuring in Statement : 
weak-continuity: weak-continuity(T;V)
, 
bool: 𝔹
Definitions unfolded in proof : 
weak-continuity: weak-continuity(T;V)
, 
all: ∀x:A. B[x]
, 
member: t ∈ T
, 
squash: ↓T
, 
exists: ∃x:A. B[x]
, 
implies: P 
⇒ Q
, 
uall: ∀[x:A]. B[x]
, 
subtype_rel: A ⊆r B
, 
nat: ℕ
, 
uimplies: b supposing a
, 
le: A ≤ B
, 
and: P ∧ Q
, 
less_than': less_than'(a;b)
, 
false: False
, 
not: ¬A
, 
true: True
, 
prop: ℙ
, 
cand: A c∧ B
, 
quotient: x,y:A//B[x; y]
, 
int_seg: {i..j-}
, 
lelt: i ≤ j < k
, 
less_than: a < b
, 
decidable: Dec(P)
, 
or: P ∨ Q
, 
satisfiable_int_formula: satisfiable_int_formula(fmla)
, 
guard: {T}
, 
iff: P 
⇐⇒ Q
, 
rev_implies: P 
⇐ Q
Lemmas referenced : 
strong-continuity2-implies-weak-skolem-cantor, 
istype-nat, 
bool_wf, 
int_seg_wf, 
subtype_rel_function, 
nat_wf, 
int_seg_subtype_nat, 
istype-false, 
subtype_rel_self, 
istype-true, 
squash_wf, 
equal_wf, 
member_wf, 
true_wf, 
istype-universe, 
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, 
int_formula_prop_not_lemma, 
int_formula_prop_le_lemma, 
int_term_value_constant_lemma, 
int_term_value_var_lemma, 
int_formula_prop_wf, 
istype-le, 
iff_weakening_equal
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
lambdaFormation_alt, 
cut, 
introduction, 
extract_by_obid, 
sqequalHypSubstitution, 
dependent_functionElimination, 
thin, 
hypothesisEquality, 
hypothesis, 
imageElimination, 
sqequalRule, 
imageMemberEquality, 
baseClosed, 
functionIsType, 
universeIsType, 
productIsType, 
inhabitedIsType, 
because_Cache, 
equalityIstype, 
isectElimination, 
natural_numberEquality, 
applyEquality, 
lambdaEquality_alt, 
setElimination, 
rename, 
independent_isectElimination, 
independent_pairFormation, 
promote_hyp, 
productEquality, 
functionEquality, 
pointwiseFunctionality, 
pertypeElimination, 
productElimination, 
independent_functionElimination, 
sqequalBase, 
equalitySymmetry, 
equalityTransitivity, 
dependent_pairFormation_alt, 
functionExtensionality_alt, 
instantiate, 
universeEquality, 
dependent_set_memberEquality_alt, 
unionElimination, 
approximateComputation, 
int_eqEquality, 
Error :memTop, 
voidElimination
Latex:
weak-continuity(\mBbbB{};\mBbbB{})
Date html generated:
2020_05_20-AM-07_47_46
Last ObjectModification:
2020_01_24-PM-01_59_43
Theory : basic
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