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

Syntax Definition wfn 6425
Description: Extend the definition of a wff to include the function predicate with a domain. (Read: 𝐴 is a function on 𝐵.)
Hypotheses
Ref Expression
cA class 𝐴
cB class 𝐵
Assertion
Ref Expression
wfn wff 𝐴 Fn 𝐵

See definition df-fn 6433 for more information.

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