Theorem tmdmnd 22685

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 2823	. . 3 ⊢ (+𝑓‘𝐺) = (+𝑓‘𝐺)
2		eqid 2823	. . 3 ⊢ (TopOpen‘𝐺) = (TopOpen‘𝐺)
3	1, 2	istmd 22684	. 2 ⊢ (𝐺 ∈ TopMnd ↔ (𝐺 ∈ Mnd ∧ 𝐺 ∈ TopSp ∧ (+𝑓‘𝐺) ∈ (((TopOpen‘𝐺) ×t (TopOpen‘𝐺)) Cn (TopOpen‘𝐺))))
4	3	simp1bi 1141	1 ⊢ (𝐺 ∈ TopMnd → 𝐺 ∈ Mnd)

Syntax hints:   → wi 4   ∈ wcel 2114  ‘cfv 6357  (class class class)co 7158  TopOpenctopn 16697  +_𝑓cplusf 17851  Mndcmnd 17913  TopSpctps 21542   Cn ccn 21834   ×_t ctx 22170  TopMndctmd 22680

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2795  ax-nul 5212

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1540  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2802  df-cleq 2816  df-clel 2895  df-nfc 2965  df-ral 3145  df-rex 3146  df-rab 3149  df-v 3498  df-sbc 3775  df-dif 3941  df-un 3943  df-in 3945  df-ss 3954  df-nul 4294  df-if 4470  df-sn 4570  df-pr 4572  df-op 4576  df-uni 4841  df-br 5069  df-iota 6316  df-fv 6365  df-ov 7161  df-tmd 22682

This theorem is referenced by:  tmdmulg  22702  tmdgsum  22705  oppgtmd  22707  prdstmdd  22734  tsmsxp  22765  xrge0iifmhm  31184  esumcst  31324