Nuprl Lemma : d-single-init_wf 0,22

i:Id, T:Type, v:Tx:Id. @ix:T initially x = v  Dsys 
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DefinitionsDsys, @ix:T initially x = v, if b t else f fi, eqof(d), IdDeq, MsgA, x : t initially x = v, x:AB(x), , t  T, Id
LemmasId wf, ma-empty wf, ma-single-init wf, msga wf, id-deq wf, eqof wf, ifthenelse wf

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