Nuprl Lemma : atom-inherence 0,22

xy:Atom1. x:Atom1>>y  x = y 
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DefinitionsAtom$n, t  T, s = t, , x:AB(x), b, x:AB(x), x:AB(x), Type, AtomFree(T;x), P  Q, x:AB(x), M(a;g;x), P  Q, P & Q, P  Q, x:T>>a, eq_atom$n(x;y), x.A(x)
Lemmaseq atom wf1, bool wf, assert wf, matters wf

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