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Syntax Definition wf1 4670
Description: Extend the definition of a wff to include one-to-one functions. (Read:  F maps  A one-to-one into  B.) The notation ("1-1" above the arrow) is from Definition 6.15(5) of [TakeutiZaring] p. 27.
Ref Expression
cA  class  A
cB  class  B
cF  class  F
Ref Expression
wf1  wff  F : A -1-1-> B

See definition df-f1 4686 for more information.

Colors of variables: wff set class
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