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Mirrors > Home > MPE Home > Th. List > elpi1 | Structured version Visualization version GIF version |
Description: The elements of the fundamental group. (Contributed by Jeff Madsen, 19-Jun-2010.) (Revised by Mario Carneiro, 10-Jul-2015.) |
Ref | Expression |
---|---|
elpi1.g | ⊢ 𝐺 = (𝐽 π1 𝑌) |
elpi1.b | ⊢ 𝐵 = (Base‘𝐺) |
elpi1.1 | ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋)) |
elpi1.2 | ⊢ (𝜑 → 𝑌 ∈ 𝑋) |
Ref | Expression |
---|---|
elpi1 | ⊢ (𝜑 → (𝐹 ∈ 𝐵 ↔ ∃𝑓 ∈ (II Cn 𝐽)(((𝑓‘0) = 𝑌 ∧ (𝑓‘1) = 𝑌) ∧ 𝐹 = [𝑓]( ≃ph‘𝐽)))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | elpi1.g | . . . 4 ⊢ 𝐺 = (𝐽 π1 𝑌) | |
2 | elpi1.1 | . . . 4 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋)) | |
3 | elpi1.2 | . . . 4 ⊢ (𝜑 → 𝑌 ∈ 𝑋) | |
4 | elpi1.b | . . . . 5 ⊢ 𝐵 = (Base‘𝐺) | |
5 | 4 | a1i 11 | . . . 4 ⊢ (𝜑 → 𝐵 = (Base‘𝐺)) |
6 | 1, 2, 3, 5 | pi1bas2 23041 | . . 3 ⊢ (𝜑 → 𝐵 = (∪ 𝐵 / ( ≃ph‘𝐽))) |
7 | 6 | eleq2d 2825 | . 2 ⊢ (𝜑 → (𝐹 ∈ 𝐵 ↔ 𝐹 ∈ (∪ 𝐵 / ( ≃ph‘𝐽)))) |
8 | elex 3352 | . . . 4 ⊢ (𝐹 ∈ (∪ 𝐵 / ( ≃ph‘𝐽)) → 𝐹 ∈ V) | |
9 | id 22 | . . . . . 6 ⊢ (𝐹 = [𝑓]( ≃ph‘𝐽) → 𝐹 = [𝑓]( ≃ph‘𝐽)) | |
10 | fvex 6362 | . . . . . . 7 ⊢ ( ≃ph‘𝐽) ∈ V | |
11 | ecexg 7915 | . . . . . . 7 ⊢ (( ≃ph‘𝐽) ∈ V → [𝑓]( ≃ph‘𝐽) ∈ V) | |
12 | 10, 11 | ax-mp 5 | . . . . . 6 ⊢ [𝑓]( ≃ph‘𝐽) ∈ V |
13 | 9, 12 | syl6eqel 2847 | . . . . 5 ⊢ (𝐹 = [𝑓]( ≃ph‘𝐽) → 𝐹 ∈ V) |
14 | 13 | rexlimivw 3167 | . . . 4 ⊢ (∃𝑓 ∈ ∪ 𝐵𝐹 = [𝑓]( ≃ph‘𝐽) → 𝐹 ∈ V) |
15 | elqsg 7965 | . . . 4 ⊢ (𝐹 ∈ V → (𝐹 ∈ (∪ 𝐵 / ( ≃ph‘𝐽)) ↔ ∃𝑓 ∈ ∪ 𝐵𝐹 = [𝑓]( ≃ph‘𝐽))) | |
16 | 8, 14, 15 | pm5.21nii 367 | . . 3 ⊢ (𝐹 ∈ (∪ 𝐵 / ( ≃ph‘𝐽)) ↔ ∃𝑓 ∈ ∪ 𝐵𝐹 = [𝑓]( ≃ph‘𝐽)) |
17 | 1, 2, 3, 5 | pi1eluni 23042 | . . . . . . 7 ⊢ (𝜑 → (𝑓 ∈ ∪ 𝐵 ↔ (𝑓 ∈ (II Cn 𝐽) ∧ (𝑓‘0) = 𝑌 ∧ (𝑓‘1) = 𝑌))) |
18 | 3anass 1081 | . . . . . . 7 ⊢ ((𝑓 ∈ (II Cn 𝐽) ∧ (𝑓‘0) = 𝑌 ∧ (𝑓‘1) = 𝑌) ↔ (𝑓 ∈ (II Cn 𝐽) ∧ ((𝑓‘0) = 𝑌 ∧ (𝑓‘1) = 𝑌))) | |
19 | 17, 18 | syl6bb 276 | . . . . . 6 ⊢ (𝜑 → (𝑓 ∈ ∪ 𝐵 ↔ (𝑓 ∈ (II Cn 𝐽) ∧ ((𝑓‘0) = 𝑌 ∧ (𝑓‘1) = 𝑌)))) |
20 | 19 | anbi1d 743 | . . . . 5 ⊢ (𝜑 → ((𝑓 ∈ ∪ 𝐵 ∧ 𝐹 = [𝑓]( ≃ph‘𝐽)) ↔ ((𝑓 ∈ (II Cn 𝐽) ∧ ((𝑓‘0) = 𝑌 ∧ (𝑓‘1) = 𝑌)) ∧ 𝐹 = [𝑓]( ≃ph‘𝐽)))) |
21 | anass 684 | . . . . 5 ⊢ (((𝑓 ∈ (II Cn 𝐽) ∧ ((𝑓‘0) = 𝑌 ∧ (𝑓‘1) = 𝑌)) ∧ 𝐹 = [𝑓]( ≃ph‘𝐽)) ↔ (𝑓 ∈ (II Cn 𝐽) ∧ (((𝑓‘0) = 𝑌 ∧ (𝑓‘1) = 𝑌) ∧ 𝐹 = [𝑓]( ≃ph‘𝐽)))) | |
22 | 20, 21 | syl6bb 276 | . . . 4 ⊢ (𝜑 → ((𝑓 ∈ ∪ 𝐵 ∧ 𝐹 = [𝑓]( ≃ph‘𝐽)) ↔ (𝑓 ∈ (II Cn 𝐽) ∧ (((𝑓‘0) = 𝑌 ∧ (𝑓‘1) = 𝑌) ∧ 𝐹 = [𝑓]( ≃ph‘𝐽))))) |
23 | 22 | rexbidv2 3186 | . . 3 ⊢ (𝜑 → (∃𝑓 ∈ ∪ 𝐵𝐹 = [𝑓]( ≃ph‘𝐽) ↔ ∃𝑓 ∈ (II Cn 𝐽)(((𝑓‘0) = 𝑌 ∧ (𝑓‘1) = 𝑌) ∧ 𝐹 = [𝑓]( ≃ph‘𝐽)))) |
24 | 16, 23 | syl5bb 272 | . 2 ⊢ (𝜑 → (𝐹 ∈ (∪ 𝐵 / ( ≃ph‘𝐽)) ↔ ∃𝑓 ∈ (II Cn 𝐽)(((𝑓‘0) = 𝑌 ∧ (𝑓‘1) = 𝑌) ∧ 𝐹 = [𝑓]( ≃ph‘𝐽)))) |
25 | 7, 24 | bitrd 268 | 1 ⊢ (𝜑 → (𝐹 ∈ 𝐵 ↔ ∃𝑓 ∈ (II Cn 𝐽)(((𝑓‘0) = 𝑌 ∧ (𝑓‘1) = 𝑌) ∧ 𝐹 = [𝑓]( ≃ph‘𝐽)))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 196 ∧ wa 383 ∧ w3a 1072 = wceq 1632 ∈ wcel 2139 ∃wrex 3051 Vcvv 3340 ∪ cuni 4588 ‘cfv 6049 (class class class)co 6813 [cec 7909 / cqs 7910 0cc0 10128 1c1 10129 Basecbs 16059 TopOnctopon 20917 Cn ccn 21230 IIcii 22879 ≃phcphtpc 22969 π1 cpi1 23003 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1871 ax-4 1886 ax-5 1988 ax-6 2054 ax-7 2090 ax-8 2141 ax-9 2148 ax-10 2168 ax-11 2183 ax-12 2196 ax-13 2391 ax-ext 2740 ax-rep 4923 ax-sep 4933 ax-nul 4941 ax-pow 4992 ax-pr 5055 ax-un 7114 ax-inf2 8711 ax-cnex 10184 ax-resscn 10185 ax-1cn 10186 ax-icn 10187 ax-addcl 10188 ax-addrcl 10189 ax-mulcl 10190 ax-mulrcl 10191 ax-mulcom 10192 ax-addass 10193 ax-mulass 10194 ax-distr 10195 ax-i2m1 10196 ax-1ne0 10197 ax-1rid 10198 ax-rnegex 10199 ax-rrecex 10200 ax-cnre 10201 ax-pre-lttri 10202 ax-pre-lttrn 10203 ax-pre-ltadd 10204 ax-pre-mulgt0 10205 ax-pre-sup 10206 ax-mulf 10208 |
This theorem depends on definitions: df-bi 197 df-or 384 df-an 385 df-3or 1073 df-3an 1074 df-tru 1635 df-ex 1854 df-nf 1859 df-sb 2047 df-eu 2611 df-mo 2612 df-clab 2747 df-cleq 2753 df-clel 2756 df-nfc 2891 df-ne 2933 df-nel 3036 df-ral 3055 df-rex 3056 df-reu 3057 df-rmo 3058 df-rab 3059 df-v 3342 df-sbc 3577 df-csb 3675 df-dif 3718 df-un 3720 df-in 3722 df-ss 3729 df-pss 3731 df-nul 4059 df-if 4231 df-pw 4304 df-sn 4322 df-pr 4324 df-tp 4326 df-op 4328 df-uni 4589 df-int 4628 df-iun 4674 df-iin 4675 df-br 4805 df-opab 4865 df-mpt 4882 df-tr 4905 df-id 5174 df-eprel 5179 df-po 5187 df-so 5188 df-fr 5225 df-se 5226 df-we 5227 df-xp 5272 df-rel 5273 df-cnv 5274 df-co 5275 df-dm 5276 df-rn 5277 df-res 5278 df-ima 5279 df-pred 5841 df-ord 5887 df-on 5888 df-lim 5889 df-suc 5890 df-iota 6012 df-fun 6051 df-fn 6052 df-f 6053 df-f1 6054 df-fo 6055 df-f1o 6056 df-fv 6057 df-isom 6058 df-riota 6774 df-ov 6816 df-oprab 6817 df-mpt2 6818 df-of 7062 df-om 7231 df-1st 7333 df-2nd 7334 df-supp 7464 df-wrecs 7576 df-recs 7637 df-rdg 7675 df-1o 7729 df-2o 7730 df-oadd 7733 df-er 7911 df-ec 7913 df-qs 7917 df-map 8025 df-ixp 8075 df-en 8122 df-dom 8123 df-sdom 8124 df-fin 8125 df-fsupp 8441 df-fi 8482 df-sup 8513 df-inf 8514 df-oi 8580 df-card 8955 df-cda 9182 df-pnf 10268 df-mnf 10269 df-xr 10270 df-ltxr 10271 df-le 10272 df-sub 10460 df-neg 10461 df-div 10877 df-nn 11213 df-2 11271 df-3 11272 df-4 11273 df-5 11274 df-6 11275 df-7 11276 df-8 11277 df-9 11278 df-n0 11485 df-z 11570 df-dec 11686 df-uz 11880 df-q 11982 df-rp 12026 df-xneg 12139 df-xadd 12140 df-xmul 12141 df-ioo 12372 df-icc 12375 df-fz 12520 df-fzo 12660 df-seq 12996 df-exp 13055 df-hash 13312 df-cj 14038 df-re 14039 df-im 14040 df-sqrt 14174 df-abs 14175 df-struct 16061 df-ndx 16062 df-slot 16063 df-base 16065 df-sets 16066 df-ress 16067 df-plusg 16156 df-mulr 16157 df-starv 16158 df-sca 16159 df-vsca 16160 df-ip 16161 df-tset 16162 df-ple 16163 df-ds 16166 df-unif 16167 df-hom 16168 df-cco 16169 df-rest 16285 df-topn 16286 df-0g 16304 df-gsum 16305 df-topgen 16306 df-pt 16307 df-prds 16310 df-xrs 16364 df-qtop 16369 df-imas 16370 df-qus 16371 df-xps 16372 df-mre 16448 df-mrc 16449 df-acs 16451 df-mgm 17443 df-sgrp 17485 df-mnd 17496 df-submnd 17537 df-mulg 17742 df-cntz 17950 df-cmn 18395 df-psmet 19940 df-xmet 19941 df-met 19942 df-bl 19943 df-mopn 19944 df-cnfld 19949 df-top 20901 df-topon 20918 df-topsp 20939 df-bases 20952 df-cld 21025 df-cn 21233 df-cnp 21234 df-tx 21567 df-hmeo 21760 df-xms 22326 df-ms 22327 df-tms 22328 df-ii 22881 df-htpy 22970 df-phtpy 22971 df-phtpc 22992 df-om1 23006 df-pi1 23008 |
This theorem is referenced by: elpi1i 23046 sconnpi1 31528 |
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