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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 476 | . . . . . 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 21749 | . . . . . . 7 ⊢ (𝜑 → ∃*𝑥 𝑥 ∈ (𝐺 tsums 𝐹)) |
10 | 9 | adantr 480 | . . . . . 6 ⊢ ((𝜑 ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → ∃*𝑥 𝑥 ∈ (𝐺 tsums 𝐹)) |
11 | eleq1 2676 | . . . . . . . . 9 ⊢ (𝑥 = 𝑋 → (𝑥 ∈ (𝐺 tsums 𝐹) ↔ 𝑋 ∈ (𝐺 tsums 𝐹))) | |
12 | 11 | moi2 3354 | . . . . . . . 8 ⊢ (((𝑋 ∈ (𝐺 tsums 𝐹) ∧ ∃*𝑥 𝑥 ∈ (𝐺 tsums 𝐹)) ∧ (𝑥 ∈ (𝐺 tsums 𝐹) ∧ 𝑋 ∈ (𝐺 tsums 𝐹))) → 𝑥 = 𝑋) |
13 | 12 | ancom2s 840 | . . . . . . 7 ⊢ (((𝑋 ∈ (𝐺 tsums 𝐹) ∧ ∃*𝑥 𝑥 ∈ (𝐺 tsums 𝐹)) ∧ (𝑋 ∈ (𝐺 tsums 𝐹) ∧ 𝑥 ∈ (𝐺 tsums 𝐹))) → 𝑥 = 𝑋) |
14 | 13 | expr 641 | . . . . . 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 1317 | . . . . 5 ⊢ ((𝜑 ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → (𝑥 ∈ (𝐺 tsums 𝐹) → 𝑥 = 𝑋)) |
16 | velsn 4141 | . . . . 5 ⊢ (𝑥 ∈ {𝑋} ↔ 𝑥 = 𝑋) | |
17 | 15, 16 | syl6ibr 241 | . . . 4 ⊢ ((𝜑 ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → (𝑥 ∈ (𝐺 tsums 𝐹) → 𝑥 ∈ {𝑋})) |
18 | 17 | ssrdv 3574 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → (𝐺 tsums 𝐹) ⊆ {𝑋}) |
19 | snssi 4280 | . . . 4 ⊢ (𝑋 ∈ (𝐺 tsums 𝐹) → {𝑋} ⊆ (𝐺 tsums 𝐹)) | |
20 | 19 | adantl 481 | . . 3 ⊢ ((𝜑 ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → {𝑋} ⊆ (𝐺 tsums 𝐹)) |
21 | 18, 20 | eqssd 3585 | . 2 ⊢ ((𝜑 ∧ 𝑋 ∈ (𝐺 tsums 𝐹)) → (𝐺 tsums 𝐹) = {𝑋}) |
22 | 21 | ex 449 | 1 ⊢ (𝜑 → (𝑋 ∈ (𝐺 tsums 𝐹) → (𝐺 tsums 𝐹) = {𝑋})) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 383 = wceq 1475 ∈ wcel 1977 ∃*wmo 2459 ⊆ wss 3540 {csn 4125 ⟶wf 5800 ‘cfv 5804 (class class class)co 6549 Basecbs 15695 TopOpenctopn 15905 CMndccmn 18016 TopSpctps 20519 Hauscha 20922 tsums ctsu 21739 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-rep 4699 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-cnex 9871 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rnegex 9886 ax-rrecex 9887 ax-cnre 9888 ax-pre-lttri 9889 ax-pre-lttrn 9890 ax-pre-ltadd 9891 ax-pre-mulgt0 9892 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-reu 2903 df-rmo 2904 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-int 4411 df-iun 4457 df-br 4584 df-opab 4644 df-mpt 4645 df-tr 4681 df-eprel 4949 df-id 4953 df-po 4959 df-so 4960 df-fr 4997 df-se 4998 df-we 4999 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-pred 5597 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-isom 5813 df-riota 6511 df-ov 6552 df-oprab 6553 df-mpt2 6554 df-om 6958 df-1st 7059 df-2nd 7060 df-supp 7183 df-wrecs 7294 df-recs 7355 df-rdg 7393 df-1o 7447 df-oadd 7451 df-er 7629 df-map 7746 df-en 7842 df-dom 7843 df-sdom 7844 df-fin 7845 df-fsupp 8159 df-oi 8298 df-card 8648 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 df-sub 10147 df-neg 10148 df-nn 10898 df-n0 11170 df-z 11255 df-uz 11564 df-fz 12198 df-fzo 12335 df-seq 12664 df-hash 12980 df-0g 15925 df-gsum 15926 df-mgm 17065 df-sgrp 17107 df-mnd 17118 df-cntz 17573 df-cmn 18018 df-fbas 19564 df-fg 19565 df-top 20521 df-topon 20523 df-topsp 20524 df-nei 20712 df-haus 20929 df-fil 21460 df-flim 21553 df-flf 21554 df-tsms 21740 |
This theorem is referenced by: haustsmsid 21754 xrge0tsms 22445 xrge0tsmsd 29116 |
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