Nuprl Lemma : id-sdata-not-pair2
∀[a:Id]. ∀[d1,d2:SecurityData].  uiff(<d1, d2> = data(a) ∈ SecurityData;False)
Proof
Definitions occuring in Statement : 
sdata-pair: <d1, d2>
, 
id-sdata: data(x)
, 
sdata: SecurityData
, 
Id: Id
, 
uiff: uiff(P;Q)
, 
uall: ∀[x:A]. B[x]
, 
false: False
, 
equal: s = t ∈ T
Definitions unfolded in proof : 
uall: ∀[x:A]. B[x]
, 
member: t ∈ T
, 
uiff: uiff(P;Q)
, 
and: P ∧ Q
, 
uimplies: b supposing a
, 
false: False
, 
prop: ℙ
Latex:
\mforall{}[a:Id].  \mforall{}[d1,d2:SecurityData].    uiff(<d1,  d2>  =  data(a);False)
Date html generated:
2016_05_17-AM-11_38_39
Last ObjectModification:
2015_12_29-PM-06_46_05
Theory : event-logic-applications
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