Metamath Proof Explorer


Definition df-l

Description: Define the class of all constructible sets. Definition 15.15 of TakeutiZaring p. 158. (Contributed by BTernaryTau, 3-Sep-2026)

Ref Expression
Assertion df-l Could not format assertion : No typesetting found for |- _L = ( _FL " On ) with typecode |-

Detailed syntax breakdown

Step Hyp Ref Expression
0 cl Could not format _L : No typesetting found for class _L with typecode class
1 cfnl Could not format _FL : No typesetting found for class _FL with typecode class
2 con0 class On
3 1 2 cima Could not format ( _FL " On ) : No typesetting found for class ( _FL " On ) with typecode class
4 0 3 wceq Could not format _L = ( _FL " On ) : No typesetting found for wff _L = ( _FL " On ) with typecode wff