Nuprl Lemma : atom-value-type
value-type(Atom)
Proof
Definitions occuring in Statement : 
value-type: value-type(T)
, 
atom: Atom
Definitions unfolded in proof : 
value-type: value-type(T)
, 
uall: ∀[x:A]. B[x]
, 
uimplies: b supposing a
, 
member: t ∈ T
, 
sq_stable: SqStable(P)
, 
implies: P 
⇒ Q
, 
all: ∀x:A. B[x]
, 
has-value: (a)↓
, 
prop: ℙ
, 
squash: ↓T
Lemmas referenced : 
sq_stable__has-value, 
equal_wf, 
equal-wf-base, 
base_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
cut, 
introduction, 
extract_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
thin, 
hypothesisEquality, 
hypothesis, 
independent_functionElimination, 
equalityTransitivity, 
equalitySymmetry, 
atomEquality, 
lambdaFormation, 
callbyvalueAtom, 
dependent_functionElimination, 
sqequalRule, 
imageMemberEquality, 
baseClosed, 
imageElimination, 
because_Cache
Latex:
value-type(Atom)
Date html generated:
2019_06_20-AM-11_21_15
Last ObjectModification:
2018_08_01-PM-03_30_59
Theory : call!by!value_1
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