Metamath Proof Explorer
Table of Contents - 21.18.5.5. Lemmas for class substitution
Some useful theorems for dealing with substitutions: sbbi, sbcbig,
sbcel1g, sbcel2, sbcel12, sbceqg, csbvarg.
- bj-sbeqALT
- bj-sbeq
- bj-sbceqgALT
- bj-csbsnlem
- bj-csbsn
- bj-sbel1
- bj-abv
- bj-abvALT
- bj-ab0
- bj-abf
- bj-csbprc