Syntax Definition wf1 2419

Description: Extend the definition of a wff to include one-to-one functions. (Read: F maps A one-to-one into B.)

Hypotheses

Ref	Expression
cA	class A
cB	class B
cF	class F

Assertion

Ref	Expression
wf1	wff F:A–1-1→B

See definition df-f1 2435 for more information.

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