NFE Home New Foundations Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  NFE Home  >  Th. List  >  wfo Unicode version

Syntax Definition wfo 4779
Description: Extend the definition of a wff to include onto functions. (Read: maps onto .) The notation ("onto" below the arrow) is from Definition 6.15(4) of [TakeutiZaring] p. 27.
Hypotheses
Ref Expression
cA
cB
cF
Assertion
Ref Expression
wfo

See definition df-fo 4793 for more information.

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