Nuprl Lemma : R-size-implies 0,22

R:Realizer.
1<R-size(R (AB:Realizer. R = (A  B) & R-size(A)<R-size(R) & R-size(B)<R-size(R)) 
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Definitionsx:AB(x), P  Q, R-size(R), x:AB(x), P & Q, Prop, xt(x), t  T, x,y,z,wt(x;y;z;w), x,y,zt(x;y;z), x,y,z,u,v,wt(x;y;z;u;v;w), x,y,z,w,vt(x;y;z;w;v), x(s), {T}, x(s1,s2,s3,s4), x(s1,s2,s3), x(a,b,c,d,e,f), x(s1,s2,s3,s4,s5),
Lemmases realizer-induction, es realizer ind wf, es realizer wf, Id wf, Knd wf, IdLnk wf, decl-state wf, decl-type wf, fpf wf, Rplus wf, R-size wf, nat plus wf

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