Nuprl Lemma : msg-form_wf 0,22

msg-form{i:l}  Type{i'} 
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DefinitionsTop, t  T, Id, xt(x), x:AB(x), a:A fp B(a), Knd, IdLnk, MsgAForm
LemmasIdLnk wf, Knd wf, fpf wf, Id wf, top wf

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