Nuprl Lemma : nat_op_add 13,42

g:IMonoid, e:|g|, ab:a+b x(*;e) e = (a x(*;e) e * b x(*;e) e |g
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Definitions, |g|, x:AB(x), x:AB(x), GrpSig, {x:AB(x)} , t  T, IMonoid, n x(op;ide, P  Q, P & Q, x:A  B(x), s = t, P  Q, P  Q, , x.A(x), n+m, x f y, f(a), (op,idlb  i < ubE(i), xt(x), {i..j}, #$n, e, *, -n, Type, T, A  B, A, False, True
Lemmastrue wf, squash wf, itop shift, grp op wf, grp id wf, int seg wf, itop wf, itop split, imon wf, grp car wf, nat wf

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