Nuprl Lemma : dset_eq_refl 13,42

s:DSet, a:|s|. (a (=a) = tt   
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Upsets 1
Definitions of StatementDSet
Definitionst  T, x f y, x:AB(x), P  Q, P  Q, P & Q, P  Q, DSet
Lemmasdset wf, set car wf, set eq wf, eqtt to assert, assert of dset eq

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