mb event system 4 Sections EventSystems Doc
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Def f(x) == 2of(f)(x)

is mentioned by

Thm* eq,x,v:Top. x : v(x) ~ v[fpf-ap-single]
Thm* eq:EqDecider(A), f:a:A fp-> Top, g:Top, x:A.
Thm* f  g(x) ~ if x  dom(f) f(x) else g(x) fi
[fpf-join-ap-sq]
Def ma-sframe-compatible(AB)
Def == kl:(KndIdLnk), tg:Id.
Def == (kl  dom(1of(2of(2of(2of(2of(2of(A)))))))
Def == (
Def == ((tg  map(p.1of(p);1of(2of(2of(2of(2of(2of(A))))))(kl)))
Def == (
Def == (<2of(kl),tg dom(1of(2of(2of(2of(2of(2of(2of(2of(A)))))))))
Def == (
Def == (<2of(kl),tg dom(1of(2of(2of(2of(2of(2of(2of(2of(B)))))))))
Def == (
Def == (deq-member(KindDeq;1of(kl);1of(2of(2of(2of(2of(2of(2of(2of(
Def == (deq-member(KindDeq;1of(kl);1of(B))))))))(<2of(kl),tg>)))
Def == & (kl  dom(1of(2of(2of(2of(2of(2of(B)))))))
Def == & (
Def == & ((tg  map(p.1of(p);1of(2of(2of(2of(2of(2of(B))))))(kl)))
Def == & (
Def == & (<2of(kl),tg dom(1of(2of(2of(2of(2of(2of(2of(2of(B)))))))))
Def == & (
Def == & (<2of(kl),tg dom(1of(2of(2of(2of(2of(2of(2of(2of(A)))))))))
Def == & (
Def == & (deq-member(KindDeq;1of(kl);1of(2of(2of(2of(2of(2of(2of(2of(
Def == & (deq-member(KindDeq;1of(kl);1of(A))))))))(<2of(kl),tg>)))
[ma-sframe-compatible]
Def ma-frame-compatible(AB)
Def == kx:(KndId). 
Def == (kx  dom(1of(2of(2of(2of(2of(A))))))
Def == (
Def == (2of(kx dom(1of(2of(2of(2of(2of(2of(2of(A))))))))
Def == (
Def == (2of(kx dom(1of(2of(2of(2of(2of(2of(2of(B))))))))
Def == (
Def == (deq-member(KindDeq;1of(kx);1of(2of(2of(2of(2of(2of(2of(
Def == (deq-member(KindDeq;1of(kx);1of(B)))))))(2of(kx))))
Def == & (kx  dom(1of(2of(2of(2of(2of(B))))))
Def == & (
Def == & (2of(kx dom(1of(2of(2of(2of(2of(2of(2of(B))))))))
Def == & (
Def == & (2of(kx dom(1of(2of(2of(2of(2of(2of(2of(A))))))))
Def == & (
Def == & (deq-member(KindDeq;1of(kx);1of(2of(2of(2of(2of(2of(2of(
Def == & (deq-member(KindDeq;1of(kx);1of(A)))))))(2of(kx))))
[ma-frame-compatible]
Def da-outlink-f(da;k) == <lnk(k),tag(k),da(k)>[da-outlink-f]
Def xdom(f). v=f(x  P(x;v) == x:Ax  dom(f P(x;f(x))[fpf-all]
Def f  g == <1of(f) @ filter(a.a  dom(f);1of(g)),a.f(a)?g(a)>[fpf-join]
Def f || g == x:Ax  dom(f) & x  dom(g f(x) = g(x B(x)[fpf-compatible]

In prior sections: mb event system 3

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mb event system 4 Sections EventSystems Doc