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Mirrors > Home > MPE Home > Th. List > haustsms2 | Structured version Visualization version GIF version |
Description: In a Hausdorff topological group, a sum has at most one limit point. (Contributed by Mario Carneiro, 13-Sep-2015.) |
Ref | Expression |
---|---|
tsmscl.b | ⊢ 𝐵 = (Base‘𝐺) |
tsmscl.1 | ⊢ (𝜑 → 𝐺 ∈ CMnd) |
tsmscl.2 | ⊢ (𝜑 → 𝐺 ∈ TopSp) |
tsmscl.a | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
tsmscl.f | ⊢ (𝜑 → 𝐹:𝐴⟶𝐵) |
haustsms.j | ⊢ 𝐽 = (TopOpen‘𝐺) |
haustsms.h | ⊢ (𝜑 → 𝐽 ∈ Haus) |
Ref | Expression |
---|---|
haustsms2 | ⊢ (𝜑 → (𝑋 ∈ (𝐺 tsums 𝐹) → (𝐺 tsums 𝐹) = {𝑋})) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpr 487 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → 𝑋 ∈ (𝐺 tsums 𝐹)) | |
2 | tsmscl.b | . . . . . . . 8 ⊢ 𝐵 = (Base‘𝐺) | |
3 | tsmscl.1 | . . . . . . . 8 ⊢ (𝜑 → 𝐺 ∈ CMnd) | |
4 | tsmscl.2 | . . . . . . . 8 ⊢ (𝜑 → 𝐺 ∈ TopSp) | |
5 | tsmscl.a | . . . . . . . 8 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
6 | tsmscl.f | . . . . . . . 8 ⊢ (𝜑 → 𝐹:𝐴⟶𝐵) | |
7 | haustsms.j | . . . . . . . 8 ⊢ 𝐽 = (TopOpen‘𝐺) | |
8 | haustsms.h | . . . . . . . 8 ⊢ (𝜑 → 𝐽 ∈ Haus) | |
9 | 2, 3, 4, 5, 6, 7, 8 | haustsms 22738 | . . . . . . 7 ⊢ (𝜑 → ∃*𝑥 𝑥 ∈ (𝐺 tsums 𝐹)) |
10 | 9 | adantr 483 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → ∃*𝑥 𝑥 ∈ (𝐺 tsums 𝐹)) |
11 | eleq1 2900 | . . . . . . . . 9 ⊢ (𝑥 = 𝑋 → (𝑥 ∈ (𝐺 tsums 𝐹) ↔ 𝑋 ∈ (𝐺 tsums 𝐹))) | |
12 | 11 | moi2 3706 | . . . . . . . 8 ⊢ (((𝑋 ∈ (𝐺 tsums 𝐹) ∧ ∃*𝑥 𝑥 ∈ (𝐺 tsums 𝐹)) ∧ (𝑥 ∈ (𝐺 tsums 𝐹) ∧ 𝑋 ∈ (𝐺 tsums 𝐹))) → 𝑥 = 𝑋) |
13 | 12 | ancom2s 648 | . . . . . . 7 ⊢ (((𝑋 ∈ (𝐺 tsums 𝐹) ∧ ∃*𝑥 𝑥 ∈ (𝐺 tsums 𝐹)) ∧ (𝑋 ∈ (𝐺 tsums 𝐹) ∧ 𝑥 ∈ (𝐺 tsums 𝐹))) → 𝑥 = 𝑋) |
14 | 13 | expr 459 | . . . . . 6 ⊢ (((𝑋 ∈ (𝐺 tsums 𝐹) ∧ ∃*𝑥 𝑥 ∈ (𝐺 tsums 𝐹)) ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → (𝑥 ∈ (𝐺 tsums 𝐹) → 𝑥 = 𝑋)) |
15 | 1, 10, 1, 14 | syl21anc 835 | . . . . 5 ⊢ ((𝜑 ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → (𝑥 ∈ (𝐺 tsums 𝐹) → 𝑥 = 𝑋)) |
16 | velsn 4576 | . . . . 5 ⊢ (𝑥 ∈ {𝑋} ↔ 𝑥 = 𝑋) | |
17 | 15, 16 | syl6ibr 254 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → (𝑥 ∈ (𝐺 tsums 𝐹) → 𝑥 ∈ {𝑋})) |
18 | 17 | ssrdv 3972 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → (𝐺 tsums 𝐹) ⊆ {𝑋}) |
19 | snssi 4734 | . . . 4 ⊢ (𝑋 ∈ (𝐺 tsums 𝐹) → {𝑋} ⊆ (𝐺 tsums 𝐹)) | |
20 | 19 | adantl 484 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → {𝑋} ⊆ (𝐺 tsums 𝐹)) |
21 | 18, 20 | eqssd 3983 | . 2 ⊢ ((𝜑 ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → (𝐺 tsums 𝐹) = {𝑋}) |
22 | 21 | ex 415 | 1 ⊢ (𝜑 → (𝑋 ∈ (𝐺 tsums 𝐹) → (𝐺 tsums 𝐹) = {𝑋})) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 = wceq 1533 ∈ wcel 2110 ∃*wmo 2616 ⊆ wss 3935 {csn 4560 ⟶wf 6345 ‘cfv 6349 (class class class)co 7150 Basecbs 16477 TopOpenctopn 16689 CMndccmn 18900 TopSpctps 21534 Hauscha 21910 tsums ctsu 22728 |
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 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-rep 5182 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7455 ax-cnex 10587 ax-resscn 10588 ax-1cn 10589 ax-icn 10590 ax-addcl 10591 ax-addrcl 10592 ax-mulcl 10593 ax-mulrcl 10594 ax-mulcom 10595 ax-addass 10596 ax-mulass 10597 ax-distr 10598 ax-i2m1 10599 ax-1ne0 10600 ax-1rid 10601 ax-rnegex 10602 ax-rrecex 10603 ax-cnre 10604 ax-pre-lttri 10605 ax-pre-lttrn 10606 ax-pre-ltadd 10607 ax-pre-mulgt0 10608 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-pss 3953 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4561 df-pr 4563 df-tp 4565 df-op 4567 df-uni 4832 df-int 4869 df-iun 4913 df-br 5059 df-opab 5121 df-mpt 5139 df-tr 5165 df-id 5454 df-eprel 5459 df-po 5468 df-so 5469 df-fr 5508 df-se 5509 df-we 5510 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-rn 5560 df-res 5561 df-ima 5562 df-pred 6142 df-ord 6188 df-on 6189 df-lim 6190 df-suc 6191 df-iota 6308 df-fun 6351 df-fn 6352 df-f 6353 df-f1 6354 df-fo 6355 df-f1o 6356 df-fv 6357 df-isom 6358 df-riota 7108 df-ov 7153 df-oprab 7154 df-mpo 7155 df-om 7575 df-1st 7683 df-2nd 7684 df-supp 7825 df-wrecs 7941 df-recs 8002 df-rdg 8040 df-1o 8096 df-oadd 8100 df-er 8283 df-map 8402 df-en 8504 df-dom 8505 df-sdom 8506 df-fin 8507 df-fsupp 8828 df-oi 8968 df-card 9362 df-pnf 10671 df-mnf 10672 df-xr 10673 df-ltxr 10674 df-le 10675 df-sub 10866 df-neg 10867 df-nn 11633 df-n0 11892 df-z 11976 df-uz 12238 df-fz 12887 df-fzo 13028 df-seq 13364 df-hash 13685 df-0g 16709 df-gsum 16710 df-mgm 17846 df-sgrp 17895 df-mnd 17906 df-cntz 18441 df-cmn 18902 df-fbas 20536 df-fg 20537 df-top 21496 df-topon 21513 df-topsp 21535 df-nei 21700 df-haus 21917 df-fil 22448 df-flim 22541 df-flf 22542 df-tsms 22729 |
This theorem is referenced by: haustsmsid 22743 xrge0tsms 23436 xrge0tsmsd 30687 |
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