Theorem tmdmnd 24023

Description: A topological monoid is a monoid. (Contributed by Mario Carneiro, 19-Sep-2015.)

Assertion

Ref	Expression
tmdmnd	⊢ (𝐺 ∈ TopMnd → 𝐺 ∈ Mnd)

Proof of Theorem tmdmnd

Step	Hyp	Ref	Expression
1		eqid 2725	. . 3 ⊢ (+𝑓‘𝐺) = (+𝑓‘𝐺)
2		eqid 2725	. . 3 ⊢ (TopOpen‘𝐺) = (TopOpen‘𝐺)
3	1, 2	istmd 24022	. 2 ⊢ (𝐺 ∈ TopMnd ↔ (𝐺 ∈ Mnd ∧ 𝐺 ∈ TopSp ∧ (+𝑓‘𝐺) ∈ (((TopOpen‘𝐺) ×t (TopOpen‘𝐺)) Cn (TopOpen‘𝐺))))
4	3	simp1bi 1142	1 ⊢ (𝐺 ∈ TopMnd → 𝐺 ∈ Mnd)

Syntax hints:   → wi 4   ∈ wcel 2098  ‘cfv 6549  (class class class)co 7419  TopOpenctopn 17406  +_𝑓cplusf 18600  Mndcmnd 18697  TopSpctps 22878   Cn ccn 23172   ×_t ctx 23508  TopMndctmd 24018

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1789  ax-4 1803  ax-5 1905  ax-6 1963  ax-7 2003  ax-8 2100  ax-9 2108  ax-ext 2696  ax-nul 5307

This theorem depends on definitions:  df-bi 206  df-an 395  df-or 846  df-3an 1086  df-tru 1536  df-fal 1546  df-ex 1774  df-sb 2060  df-clab 2703  df-cleq 2717  df-clel 2802  df-ne 2930  df-rab 3419  df-v 3463  df-sbc 3774  df-dif 3947  df-un 3949  df-in 3951  df-ss 3961  df-nul 4323  df-if 4531  df-sn 4631  df-pr 4633  df-op 4637  df-uni 4910  df-br 5150  df-iota 6501  df-fv 6557  df-ov 7422  df-tmd 24020

This theorem is referenced by:  tmdmulg  24040  tmdgsum  24043  oppgtmd  24045  prdstmdd  24072  tsmsxp  24103  xrge0iifmhm  33671  esumcst  33813