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Mirrors > Home > MPE Home > Th. List > tmdmnd | Structured version Visualization version GIF version |
Description: A topological monoid is a monoid. (Contributed by Mario Carneiro, 19-Sep-2015.) |
Ref | Expression |
---|---|
tmdmnd | ⊢ (𝐺 ∈ TopMnd → 𝐺 ∈ Mnd) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eqid 2735 | . . 3 ⊢ (+𝑓‘𝐺) = (+𝑓‘𝐺) | |
2 | eqid 2735 | . . 3 ⊢ (TopOpen‘𝐺) = (TopOpen‘𝐺) | |
3 | 1, 2 | istmd 24098 | . 2 ⊢ (𝐺 ∈ TopMnd ↔ (𝐺 ∈ Mnd ∧ 𝐺 ∈ TopSp ∧ (+𝑓‘𝐺) ∈ (((TopOpen‘𝐺) ×t (TopOpen‘𝐺)) Cn (TopOpen‘𝐺)))) |
4 | 3 | simp1bi 1144 | 1 ⊢ (𝐺 ∈ TopMnd → 𝐺 ∈ Mnd) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2106 ‘cfv 6563 (class class class)co 7431 TopOpenctopn 17468 +𝑓cplusf 18663 Mndcmnd 18760 TopSpctps 22954 Cn ccn 23248 ×t ctx 23584 TopMndctmd 24094 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1908 ax-6 1965 ax-7 2005 ax-8 2108 ax-9 2116 ax-ext 2706 ax-nul 5312 |
This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1540 df-fal 1550 df-ex 1777 df-sb 2063 df-clab 2713 df-cleq 2727 df-clel 2814 df-ne 2939 df-rab 3434 df-v 3480 df-sbc 3792 df-dif 3966 df-un 3968 df-in 3970 df-ss 3980 df-nul 4340 df-if 4532 df-sn 4632 df-pr 4634 df-op 4638 df-uni 4913 df-br 5149 df-iota 6516 df-fv 6571 df-ov 7434 df-tmd 24096 |
This theorem is referenced by: tmdmulg 24116 tmdgsum 24119 oppgtmd 24121 prdstmdd 24148 tsmsxp 24179 xrge0iifmhm 33900 esumcst 34044 |
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