ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  cab Unicode version

Syntax Definition cab 2023
Description: Introduce the class builder or class abstraction notation ("the class of sets such that is true"). Our class variables , , etc. range over class builders (sometimes implicitly). Note that a setvar variable can be expressed as a class builder per theorem cvjust 2032, justifying the assignment of setvar variables to class variables via the use of cv 1241.
Ref Expression
vx  setvar
Ref Expression
cab  {  |  }

See definition df-clab 2024 for more information.

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