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Syntax Definition wf1 4842
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.
Hypotheses
Ref Expression
cA class A
cB class B
cF class 𝐹
Assertion
Ref Expression
wf1 wff 𝐹:A1-1B

See definition df-f1 4850 for more information.

Colors of variables: wff set class
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