M.frame(k affects x)
== L != 1of(2of(2of(2of(2of(2of(2of(M)))))))(x)  deq-member(KindDeq;k;L) 

latex

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clarification:

M.frame(k affects x)
== fpf-val(IdDeq; 1of(2of(2of(2of(2of(2of(2of(M))))))); x; x,L.deq-member(KindDeq;k;L)) 

latex

Definitions	z != f(x)  P(a;z), IdDeq, 1of(t), 2of(t), b, deq-member(eq;x;L), KindDeq
FDL editor aliases	ma-frame