Nuprl Lemma : eq_int_eq_true_elim_sqequal 12,41

i, j:. ((i = j) ~ tt)  (i = j) 
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Definitionst  T, x:A. B(x), P  Q, , P & Q, P  Q
Lemmasint sq, btrue wf, assert of eq int, eqtt to assert, assert wf, bool wf, iff transitivity

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