Metamath Proof Explorer


Definition df-mulr

Description: Define ring multiplication. (Contributed by NM, 4-Sep-2011) (Revised by Mario Carneiro, 14-Aug-2015)

Ref Expression
Assertion df-mulr .r = Slot 3

Detailed syntax breakdown

Step Hyp Ref Expression
0 cmulr .r
1 c3 3
2 1 cslot Slot 3
3 0 2 wceq .r = Slot 3