Nuprl Definition : preserved_by2 4,23

(ternary) R preserves P  == xyz:TP(x P(y R(x,y,z P(z
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clarification:

preserved_by2(T;R;P) == x:Ty:Tz:TP(x P(y R(x,y,z P(z
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Definitionsx:AB(x), P  Q
FDL editor aliasespreserved_by2

origin