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Theorem trgtmd2 22706
Description: A topological ring is a topological monoid. (Contributed by Mario Carneiro, 5-Oct-2015.)
Assertion
Ref Expression
trgtmd2 (𝑅 ∈ TopRing → 𝑅 ∈ TopMnd)

Proof of Theorem trgtmd2
StepHypRef Expression
1 trgtgp 22705 . 2 (𝑅 ∈ TopRing → 𝑅 ∈ TopGrp)
2 tgptmd 22617 . 2 (𝑅 ∈ TopGrp → 𝑅 ∈ TopMnd)
31, 2syl 17 1 (𝑅 ∈ TopRing → 𝑅 ∈ TopMnd)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wcel 2105  TopMndctmd 22608  TopGrpctgp 22609  TopRingctrg 22693
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1787  ax-4 1801  ax-5 1902  ax-6 1961  ax-7 2006  ax-8 2107  ax-9 2115  ax-10 2136  ax-11 2151  ax-12 2167  ax-ext 2793  ax-nul 5202
This theorem depends on definitions:  df-bi 208  df-an 397  df-or 842  df-3an 1081  df-tru 1531  df-ex 1772  df-nf 1776  df-sb 2061  df-mo 2618  df-eu 2650  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ral 3143  df-rex 3144  df-rab 3147  df-v 3497  df-sbc 3772  df-dif 3938  df-un 3940  df-in 3942  df-ss 3951  df-nul 4291  df-if 4466  df-sn 4560  df-pr 4562  df-op 4566  df-uni 4833  df-br 5059  df-iota 6308  df-fv 6357  df-ov 7148  df-tgp 22611  df-trg 22697
This theorem is referenced by:  tdrgtmd  22713  qqhcn  31132
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