Nuprl Lemma : msys-at-at 0,22

i:Id, A:Top. (@iA(i)) ~ A 
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DefinitionsTop, @iA, Unit, P  Q, P & Q, a = b, , b, Id, t  T, Prop, b, x:AB(x), A, P  Q, False
Lemmasassert wf, not wf, Id wf, bnot wf, bool wf, eq id wf, assert-eq-id, not functionality wrt iff, assert of bnot, iff transitivity, eqff to assert, eqtt to assert, top wf

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