Metamath Proof Explorer

Definition df-mtc

Description: Define the set of typecodes in a Metamath formal system. (Contributed by Mario Carneiro, 14-Jul-2016)

Ref Expression
Assertion df-mtc 
|- mTC = Slot 4

Detailed syntax breakdown

Step Hyp Ref Expression
0 cmtc 
 |-  mTC
1 c4 
 |-  4
2 1 cslot 
 |-  Slot 4
3 0 2 wceq 
 |-  mTC = Slot 4