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Mirrors > Home > MPE Home > Th. List > pcohtpy | Structured version Visualization version GIF version |
Description: Homotopy invariance of path concatenation. (Contributed by Jeff Madsen, 15-Jun-2010.) (Revised by Mario Carneiro, 24-Feb-2015.) |
Ref | Expression |
---|---|
pcohtpy.4 | ⊢ (𝜑 → (𝐹‘1) = (𝐺‘0)) |
pcohtpy.5 | ⊢ (𝜑 → 𝐹( ≃ph‘𝐽)𝐻) |
pcohtpy.6 | ⊢ (𝜑 → 𝐺( ≃ph‘𝐽)𝐾) |
Ref | Expression |
---|---|
pcohtpy | ⊢ (𝜑 → (𝐹(*𝑝‘𝐽)𝐺)( ≃ph‘𝐽)(𝐻(*𝑝‘𝐽)𝐾)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | pcohtpy.5 | . . . . 5 ⊢ (𝜑 → 𝐹( ≃ph‘𝐽)𝐻) | |
2 | isphtpc 23845 | . . . . 5 ⊢ (𝐹( ≃ph‘𝐽)𝐻 ↔ (𝐹 ∈ (II Cn 𝐽) ∧ 𝐻 ∈ (II Cn 𝐽) ∧ (𝐹(PHtpy‘𝐽)𝐻) ≠ ∅)) | |
3 | 1, 2 | sylib 221 | . . . 4 ⊢ (𝜑 → (𝐹 ∈ (II Cn 𝐽) ∧ 𝐻 ∈ (II Cn 𝐽) ∧ (𝐹(PHtpy‘𝐽)𝐻) ≠ ∅)) |
4 | 3 | simp1d 1144 | . . 3 ⊢ (𝜑 → 𝐹 ∈ (II Cn 𝐽)) |
5 | pcohtpy.6 | . . . . 5 ⊢ (𝜑 → 𝐺( ≃ph‘𝐽)𝐾) | |
6 | isphtpc 23845 | . . . . 5 ⊢ (𝐺( ≃ph‘𝐽)𝐾 ↔ (𝐺 ∈ (II Cn 𝐽) ∧ 𝐾 ∈ (II Cn 𝐽) ∧ (𝐺(PHtpy‘𝐽)𝐾) ≠ ∅)) | |
7 | 5, 6 | sylib 221 | . . . 4 ⊢ (𝜑 → (𝐺 ∈ (II Cn 𝐽) ∧ 𝐾 ∈ (II Cn 𝐽) ∧ (𝐺(PHtpy‘𝐽)𝐾) ≠ ∅)) |
8 | 7 | simp1d 1144 | . . 3 ⊢ (𝜑 → 𝐺 ∈ (II Cn 𝐽)) |
9 | pcohtpy.4 | . . 3 ⊢ (𝜑 → (𝐹‘1) = (𝐺‘0)) | |
10 | 4, 8, 9 | pcocn 23868 | . 2 ⊢ (𝜑 → (𝐹(*𝑝‘𝐽)𝐺) ∈ (II Cn 𝐽)) |
11 | 3 | simp2d 1145 | . . 3 ⊢ (𝜑 → 𝐻 ∈ (II Cn 𝐽)) |
12 | 7 | simp2d 1145 | . . 3 ⊢ (𝜑 → 𝐾 ∈ (II Cn 𝐽)) |
13 | phtpc01 23847 | . . . . . 6 ⊢ (𝐹( ≃ph‘𝐽)𝐻 → ((𝐹‘0) = (𝐻‘0) ∧ (𝐹‘1) = (𝐻‘1))) | |
14 | 1, 13 | syl 17 | . . . . 5 ⊢ (𝜑 → ((𝐹‘0) = (𝐻‘0) ∧ (𝐹‘1) = (𝐻‘1))) |
15 | 14 | simprd 499 | . . . 4 ⊢ (𝜑 → (𝐹‘1) = (𝐻‘1)) |
16 | phtpc01 23847 | . . . . . 6 ⊢ (𝐺( ≃ph‘𝐽)𝐾 → ((𝐺‘0) = (𝐾‘0) ∧ (𝐺‘1) = (𝐾‘1))) | |
17 | 5, 16 | syl 17 | . . . . 5 ⊢ (𝜑 → ((𝐺‘0) = (𝐾‘0) ∧ (𝐺‘1) = (𝐾‘1))) |
18 | 17 | simpld 498 | . . . 4 ⊢ (𝜑 → (𝐺‘0) = (𝐾‘0)) |
19 | 9, 15, 18 | 3eqtr3d 2779 | . . 3 ⊢ (𝜑 → (𝐻‘1) = (𝐾‘0)) |
20 | 11, 12, 19 | pcocn 23868 | . 2 ⊢ (𝜑 → (𝐻(*𝑝‘𝐽)𝐾) ∈ (II Cn 𝐽)) |
21 | 3 | simp3d 1146 | . . . . 5 ⊢ (𝜑 → (𝐹(PHtpy‘𝐽)𝐻) ≠ ∅) |
22 | n0 4247 | . . . . 5 ⊢ ((𝐹(PHtpy‘𝐽)𝐻) ≠ ∅ ↔ ∃𝑚 𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻)) | |
23 | 21, 22 | sylib 221 | . . . 4 ⊢ (𝜑 → ∃𝑚 𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻)) |
24 | 7 | simp3d 1146 | . . . . 5 ⊢ (𝜑 → (𝐺(PHtpy‘𝐽)𝐾) ≠ ∅) |
25 | n0 4247 | . . . . 5 ⊢ ((𝐺(PHtpy‘𝐽)𝐾) ≠ ∅ ↔ ∃𝑛 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾)) | |
26 | 24, 25 | sylib 221 | . . . 4 ⊢ (𝜑 → ∃𝑛 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾)) |
27 | exdistrv 1964 | . . . 4 ⊢ (∃𝑚∃𝑛(𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻) ∧ 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾)) ↔ (∃𝑚 𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻) ∧ ∃𝑛 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾))) | |
28 | 23, 26, 27 | sylanbrc 586 | . . 3 ⊢ (𝜑 → ∃𝑚∃𝑛(𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻) ∧ 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾))) |
29 | 9 | adantr 484 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻) ∧ 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾))) → (𝐹‘1) = (𝐺‘0)) |
30 | 1 | adantr 484 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻) ∧ 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾))) → 𝐹( ≃ph‘𝐽)𝐻) |
31 | 5 | adantr 484 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻) ∧ 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾))) → 𝐺( ≃ph‘𝐽)𝐾) |
32 | eqid 2736 | . . . . . . 7 ⊢ (𝑥 ∈ (0[,]1), 𝑦 ∈ (0[,]1) ↦ if(𝑥 ≤ (1 / 2), ((2 · 𝑥)𝑚𝑦), (((2 · 𝑥) − 1)𝑛𝑦))) = (𝑥 ∈ (0[,]1), 𝑦 ∈ (0[,]1) ↦ if(𝑥 ≤ (1 / 2), ((2 · 𝑥)𝑚𝑦), (((2 · 𝑥) − 1)𝑛𝑦))) | |
33 | simprl 771 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻) ∧ 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾))) → 𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻)) | |
34 | simprr 773 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻) ∧ 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾))) → 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾)) | |
35 | 29, 30, 31, 32, 33, 34 | pcohtpylem 23870 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻) ∧ 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾))) → (𝑥 ∈ (0[,]1), 𝑦 ∈ (0[,]1) ↦ if(𝑥 ≤ (1 / 2), ((2 · 𝑥)𝑚𝑦), (((2 · 𝑥) − 1)𝑛𝑦))) ∈ ((𝐹(*𝑝‘𝐽)𝐺)(PHtpy‘𝐽)(𝐻(*𝑝‘𝐽)𝐾))) |
36 | 35 | ne0d 4236 | . . . . 5 ⊢ ((𝜑 ∧ (𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻) ∧ 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾))) → ((𝐹(*𝑝‘𝐽)𝐺)(PHtpy‘𝐽)(𝐻(*𝑝‘𝐽)𝐾)) ≠ ∅) |
37 | 36 | ex 416 | . . . 4 ⊢ (𝜑 → ((𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻) ∧ 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾)) → ((𝐹(*𝑝‘𝐽)𝐺)(PHtpy‘𝐽)(𝐻(*𝑝‘𝐽)𝐾)) ≠ ∅)) |
38 | 37 | exlimdvv 1942 | . . 3 ⊢ (𝜑 → (∃𝑚∃𝑛(𝑚 ∈ (𝐹(PHtpy‘𝐽)𝐻) ∧ 𝑛 ∈ (𝐺(PHtpy‘𝐽)𝐾)) → ((𝐹(*𝑝‘𝐽)𝐺)(PHtpy‘𝐽)(𝐻(*𝑝‘𝐽)𝐾)) ≠ ∅)) |
39 | 28, 38 | mpd 15 | . 2 ⊢ (𝜑 → ((𝐹(*𝑝‘𝐽)𝐺)(PHtpy‘𝐽)(𝐻(*𝑝‘𝐽)𝐾)) ≠ ∅) |
40 | isphtpc 23845 | . 2 ⊢ ((𝐹(*𝑝‘𝐽)𝐺)( ≃ph‘𝐽)(𝐻(*𝑝‘𝐽)𝐾) ↔ ((𝐹(*𝑝‘𝐽)𝐺) ∈ (II Cn 𝐽) ∧ (𝐻(*𝑝‘𝐽)𝐾) ∈ (II Cn 𝐽) ∧ ((𝐹(*𝑝‘𝐽)𝐺)(PHtpy‘𝐽)(𝐻(*𝑝‘𝐽)𝐾)) ≠ ∅)) | |
41 | 10, 20, 39, 40 | syl3anbrc 1345 | 1 ⊢ (𝜑 → (𝐹(*𝑝‘𝐽)𝐺)( ≃ph‘𝐽)(𝐻(*𝑝‘𝐽)𝐾)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1089 = wceq 1543 ∃wex 1787 ∈ wcel 2112 ≠ wne 2932 ∅c0 4223 ifcif 4425 class class class wbr 5039 ‘cfv 6358 (class class class)co 7191 ∈ cmpo 7193 0cc0 10694 1c1 10695 · cmul 10699 ≤ cle 10833 − cmin 11027 / cdiv 11454 2c2 11850 [,]cicc 12903 Cn ccn 22075 IIcii 23726 PHtpycphtpy 23819 ≃phcphtpc 23820 *𝑝cpco 23851 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2018 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2160 ax-12 2177 ax-ext 2708 ax-rep 5164 ax-sep 5177 ax-nul 5184 ax-pow 5243 ax-pr 5307 ax-un 7501 ax-cnex 10750 ax-resscn 10751 ax-1cn 10752 ax-icn 10753 ax-addcl 10754 ax-addrcl 10755 ax-mulcl 10756 ax-mulrcl 10757 ax-mulcom 10758 ax-addass 10759 ax-mulass 10760 ax-distr 10761 ax-i2m1 10762 ax-1ne0 10763 ax-1rid 10764 ax-rnegex 10765 ax-rrecex 10766 ax-cnre 10767 ax-pre-lttri 10768 ax-pre-lttrn 10769 ax-pre-ltadd 10770 ax-pre-mulgt0 10771 ax-pre-sup 10772 ax-mulf 10774 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2073 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2728 df-clel 2809 df-nfc 2879 df-ne 2933 df-nel 3037 df-ral 3056 df-rex 3057 df-reu 3058 df-rmo 3059 df-rab 3060 df-v 3400 df-sbc 3684 df-csb 3799 df-dif 3856 df-un 3858 df-in 3860 df-ss 3870 df-pss 3872 df-nul 4224 df-if 4426 df-pw 4501 df-sn 4528 df-pr 4530 df-tp 4532 df-op 4534 df-uni 4806 df-int 4846 df-iun 4892 df-iin 4893 df-br 5040 df-opab 5102 df-mpt 5121 df-tr 5147 df-id 5440 df-eprel 5445 df-po 5453 df-so 5454 df-fr 5494 df-se 5495 df-we 5496 df-xp 5542 df-rel 5543 df-cnv 5544 df-co 5545 df-dm 5546 df-rn 5547 df-res 5548 df-ima 5549 df-pred 6140 df-ord 6194 df-on 6195 df-lim 6196 df-suc 6197 df-iota 6316 df-fun 6360 df-fn 6361 df-f 6362 df-f1 6363 df-fo 6364 df-f1o 6365 df-fv 6366 df-isom 6367 df-riota 7148 df-ov 7194 df-oprab 7195 df-mpo 7196 df-of 7447 df-om 7623 df-1st 7739 df-2nd 7740 df-supp 7882 df-wrecs 8025 df-recs 8086 df-rdg 8124 df-1o 8180 df-2o 8181 df-er 8369 df-map 8488 df-ixp 8557 df-en 8605 df-dom 8606 df-sdom 8607 df-fin 8608 df-fsupp 8964 df-fi 9005 df-sup 9036 df-inf 9037 df-oi 9104 df-card 9520 df-pnf 10834 df-mnf 10835 df-xr 10836 df-ltxr 10837 df-le 10838 df-sub 11029 df-neg 11030 df-div 11455 df-nn 11796 df-2 11858 df-3 11859 df-4 11860 df-5 11861 df-6 11862 df-7 11863 df-8 11864 df-9 11865 df-n0 12056 df-z 12142 df-dec 12259 df-uz 12404 df-q 12510 df-rp 12552 df-xneg 12669 df-xadd 12670 df-xmul 12671 df-ioo 12904 df-icc 12907 df-fz 13061 df-fzo 13204 df-seq 13540 df-exp 13601 df-hash 13862 df-cj 14627 df-re 14628 df-im 14629 df-sqrt 14763 df-abs 14764 df-struct 16668 df-ndx 16669 df-slot 16670 df-base 16672 df-sets 16673 df-ress 16674 df-plusg 16762 df-mulr 16763 df-starv 16764 df-sca 16765 df-vsca 16766 df-ip 16767 df-tset 16768 df-ple 16769 df-ds 16771 df-unif 16772 df-hom 16773 df-cco 16774 df-rest 16881 df-topn 16882 df-0g 16900 df-gsum 16901 df-topgen 16902 df-pt 16903 df-prds 16906 df-xrs 16961 df-qtop 16966 df-imas 16967 df-xps 16969 df-mre 17043 df-mrc 17044 df-acs 17046 df-mgm 18068 df-sgrp 18117 df-mnd 18128 df-submnd 18173 df-mulg 18443 df-cntz 18665 df-cmn 19126 df-psmet 20309 df-xmet 20310 df-met 20311 df-bl 20312 df-mopn 20313 df-cnfld 20318 df-top 21745 df-topon 21762 df-topsp 21784 df-bases 21797 df-cld 21870 df-cn 22078 df-cnp 22079 df-tx 22413 df-hmeo 22606 df-xms 23172 df-ms 23173 df-tms 23174 df-ii 23728 df-htpy 23821 df-phtpy 23822 df-phtpc 23843 df-pco 23856 |
This theorem is referenced by: pcophtb 23880 pi1cpbl 23895 pi1xfrf 23904 pi1xfr 23906 pi1xfrcnvlem 23907 |
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