Nuprl Definition : l-union 0,22

l-union(eq;as;bs) == reduce(a,L. insert(a;L);as;bs
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clarification:

l-union(eq;as;bs) == reduce(a,L. insert(eqaL);as;bs
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Definitionsreduce(f;k;as), x.A(x), insert(a;L)
FDL editor aliasesl-union

origin