Nuprl Lemma : callbyvalueall-nil
∀[F:Top]. (let x ⟵ [] in F[x] ~ F[[]])
Proof
Definitions occuring in Statement : 
nil: []
, 
callbyvalueall: callbyvalueall, 
uall: ∀[x:A]. B[x]
, 
top: Top
, 
so_apply: x[s]
, 
sqequal: s ~ t
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
callbyvalueall: callbyvalueall, 
evalall: evalall(t)
, 
nil: []
, 
it: ⋅
, 
so_apply: x[s]
Lemmas referenced : 
top_wf
Rules used in proof : 
sqequalSubstitution, 
sqequalTransitivity, 
computationStep, 
sqequalReflexivity, 
isect_memberFormation, 
introduction, 
cut, 
sqequalRule, 
hypothesis, 
sqequalAxiom, 
extract_by_obid
Latex:
\mforall{}[F:Top].  (let  x  \mleftarrow{}{}  []  in  F[x]  \msim{}  F[[]])
Date html generated:
2018_05_21-PM-06_21_30
Last ObjectModification:
2018_05_19-PM-05_27_34
Theory : untyped!computation
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