Nuprl Lemma : atom-sdata-has-atom
∀[a,b:Atom1].  uiff(b#data(a):SecurityData;¬(a = b ∈ Atom1))
Proof
Definitions occuring in Statement : 
atom-sdata: data(a)
, 
sdata: SecurityData
, 
free-from-atom: a#x:T
, 
atom: Atom$n
, 
uiff: uiff(P;Q)
, 
uall: ∀[x:A]. B[x]
, 
not: ¬A
, 
equal: s = t ∈ T
Lemmas : 
equal-wf-base, 
atom1_subtype_base, 
free-from-atom_wf, 
sdata_wf, 
atom-sdata_wf, 
not_wf, 
subtype_base_sq, 
exists_wf, 
equal-wf-T-base, 
sdata_subtype_base
Latex:
\mforall{}[a,b:Atom1].    uiff(b\#data(a):SecurityData;\mneg{}(a  =  b))
Date html generated:
2015_07_23-PM-00_01_09
Last ObjectModification:
2015_01_29-AM-07_44_29
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