MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  wf1 Structured version   Visualization version   GIF version

Syntax Definition wf1 6346
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 6354 for more information.

Colors of variables: wff setvar class
  Copyright terms: Public domain W3C validator