Def WellFnd{i}(A;x,y.R(x;y))
Def == P:(AProp). (j:A. (k:A. R(k;j)  P(k))  P(j))  {n:A. P(n)}

is mentioned by

Thm* the_es:ES. WellFnd{i}(E;x,y.(x <loc y))	[es-locl-wellfnd]
Thm* R:(TTType). SWellFounded(R(x,y))  WellFnd{i}(T;x,y.R(x,y))	[strongwf-implies]

In prior sections: well fnd int 1 int 2

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