Nuprl Definition : p-compose' 11,40

f o' g(x) == if can-apply(g;x) then inl (f(x,do-apply(g;x)))  else g(x) fi  
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Definitionsx.A(x), if b then t else f fi , can-apply(f;x), inl x , do-apply(f;x), f(a)
FDL editor aliasesp-compose'

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