Nuprl Lemma : is-exception_wf
∀[t:Base]. (is-exception(t) ∈ ℙ)
Proof
Definitions occuring in Statement : 
is-exception: is-exception(t)
, 
uall: ∀[x:A]. B[x]
, 
prop: ℙ
, 
member: t ∈ T
, 
base: Base
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
is-exception: is-exception(t)
Lemmas referenced : 
sqle_wf_base, 
base_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
sqequalRule, 
extract_by_obid, 
sqequalHypSubstitution, 
isectElimination, 
thin, 
baseClosed, 
hypothesisEquality, 
hypothesis, 
axiomEquality, 
equalityTransitivity, 
equalitySymmetry
Latex:
\mforall{}[t:Base].  (is-exception(t)  \mmember{}  \mBbbP{})
Date html generated:
2017_04_14-AM-07_14_43
Last ObjectModification:
2017_02_24-PM-05_51_30
Theory : call!by!value_1
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