Theorem tmdmnd 23992

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 2728	. . 3 ⊢ (+𝑓‘𝐺) = (+𝑓‘𝐺)
2		eqid 2728	. . 3 ⊢ (TopOpen‘𝐺) = (TopOpen‘𝐺)
3	1, 2	istmd 23991	. 2 ⊢ (𝐺 ∈ TopMnd ↔ (𝐺 ∈ Mnd ∧ 𝐺 ∈ TopSp ∧ (+𝑓‘𝐺) ∈ (((TopOpen‘𝐺) ×t (TopOpen‘𝐺)) Cn (TopOpen‘𝐺))))
4	3	simp1bi 1143	1 ⊢ (𝐺 ∈ TopMnd → 𝐺 ∈ Mnd)

Syntax hints:   → wi 4   ∈ wcel 2099  ‘cfv 6548  (class class class)co 7420  TopOpenctopn 17403  +_𝑓cplusf 18597  Mndcmnd 18694  TopSpctps 22847   Cn ccn 23141   ×_t ctx 23477  TopMndctmd 23987

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1790  ax-4 1804  ax-5 1906  ax-6 1964  ax-7 2004  ax-8 2101  ax-9 2109  ax-ext 2699  ax-nul 5306

This theorem depends on definitions:  df-bi 206  df-an 396  df-or 847  df-3an 1087  df-tru 1537  df-fal 1547  df-ex 1775  df-sb 2061  df-clab 2706  df-cleq 2720  df-clel 2806  df-ne 2938  df-rab 3430  df-v 3473  df-sbc 3777  df-dif 3950  df-un 3952  df-in 3954  df-ss 3964  df-nul 4324  df-if 4530  df-sn 4630  df-pr 4632  df-op 4636  df-uni 4909  df-br 5149  df-iota 6500  df-fv 6556  df-ov 7423  df-tmd 23989

This theorem is referenced by:  tmdmulg  24009  tmdgsum  24012  oppgtmd  24014  prdstmdd  24041  tsmsxp  24072  xrge0iifmhm  33540  esumcst  33682