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Syntax Definition wf1o 4844
Description: Extend the definition of a wff to include one-to-one onto functions. (Read:  F maps one-to-one onto .) The notation ("1-1" above the arrow and "onto" below the arrow) is from Definition 6.15(6) of [TakeutiZaring] p. 27.
Ref Expression
cF  F
Ref Expression
wf1o  F :

See definition df-f1o 4852 for more information.

Colors of variables: wff set class
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