Nuprl Lemma : w-s_wf 0,22

the_w:World, i:Id, t:x:Id. s(i;t).x  vartype(i;x
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DefinitionsWorld, vartype(i;x), s(i;t).x, w.T, x:AB(x), , t  T, Id
LemmasId wf, nat wf, world wf

origin