Metamath Proof Explorer


Theorem zlmmulrOLD

Description: Obsolete version of zlmbas as of 3-Nov-2024. Ring operation of a ZZ -module (if present). (Contributed by Mario Carneiro, 2-Oct-2015) (New usage is discouraged.) (Proof modification is discouraged.)

Ref Expression
Hypotheses zlmbas.w
|- W = ( ZMod ` G )
zlmmulr.2
|- .x. = ( .r ` G )
Assertion zlmmulrOLD
|- .x. = ( .r ` W )

Proof

Step Hyp Ref Expression
1 zlmbas.w
 |-  W = ( ZMod ` G )
2 zlmmulr.2
 |-  .x. = ( .r ` G )
3 df-mulr
 |-  .r = Slot 3
4 3nn
 |-  3 e. NN
5 3lt5
 |-  3 < 5
6 1 3 4 5 zlmlemOLD
 |-  ( .r ` G ) = ( .r ` W )
7 2 6 eqtri
 |-  .x. = ( .r ` W )