Metamath Proof Explorer


Theorem mgptsetOLD

Description: Obsolete version of mgptset as of 18-Oct-2024. Topology component of the multiplication group. (Contributed by Mario Carneiro, 5-Oct-2015) (Proof modification is discouraged.) (New usage is discouraged.)

Ref Expression
Hypothesis mgpbas.1
|- M = ( mulGrp ` R )
Assertion mgptsetOLD
|- ( TopSet ` R ) = ( TopSet ` M )

Proof

Step Hyp Ref Expression
1 mgpbas.1
 |-  M = ( mulGrp ` R )
2 df-tset
 |-  TopSet = Slot 9
3 9nn
 |-  9 e. NN
4 2re
 |-  2 e. RR
5 2lt9
 |-  2 < 9
6 4 5 gtneii
 |-  9 =/= 2
7 1 2 3 6 mgplemOLD
 |-  ( TopSet ` R ) = ( TopSet ` M )