Metamath Proof Explorer


Definition df-mcn

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

Ref Expression
Assertion df-mcn mCN=Slot1

Detailed syntax breakdown

Step Hyp Ref Expression
0 cmcn classmCN
1 c1 class1
2 1 cslot classSlot1
3 0 2 wceq wffmCN=Slot1