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| Mirrors > Home > HSE Home > Th. List > cvmdi | Structured version Visualization version GIF version | ||
| Description: The covering property implies the modular pair property. Lemma 7.5.1 of [MaedaMaeda] p. 31. (Contributed by NM, 16-Jun-2004.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| mdsl.1 | ⊢ 𝐴 ∈ Cℋ |
| mdsl.2 | ⊢ 𝐵 ∈ Cℋ |
| Ref | Expression |
|---|---|
| cvmdi | ⊢ ((𝐴 ∩ 𝐵) ⋖ℋ 𝐵 → 𝐴 𝑀ℋ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | anass 474 | . . . . . 6 ⊢ ((((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨ℋ 𝐵)) ∧ 𝑥 ⊆ 𝐵) ↔ ((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ (𝑥 ⊆ (𝐴 ∨ℋ 𝐵) ∧ 𝑥 ⊆ 𝐵))) | |
| 2 | mdsl.2 | . . . . . . . . . 10 ⊢ 𝐵 ∈ Cℋ | |
| 3 | mdsl.1 | . . . . . . . . . 10 ⊢ 𝐴 ∈ Cℋ | |
| 4 | 2, 3 | chub2i 31954 | . . . . . . . . 9 ⊢ 𝐵 ⊆ (𝐴 ∨ℋ 𝐵) |
| 5 | sstr 3939 | . . . . . . . . 9 ⊢ ((𝑥 ⊆ 𝐵 ∧ 𝐵 ⊆ (𝐴 ∨ℋ 𝐵)) → 𝑥 ⊆ (𝐴 ∨ℋ 𝐵)) | |
| 6 | 4, 5 | mpan2 704 | . . . . . . . 8 ⊢ (𝑥 ⊆ 𝐵 → 𝑥 ⊆ (𝐴 ∨ℋ 𝐵)) |
| 7 | 6 | pm4.71ri 570 | . . . . . . 7 ⊢ (𝑥 ⊆ 𝐵 ↔ (𝑥 ⊆ (𝐴 ∨ℋ 𝐵) ∧ 𝑥 ⊆ 𝐵)) |
| 8 | 7 | anbi2i 635 | . . . . . 6 ⊢ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) ↔ ((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ (𝑥 ⊆ (𝐴 ∨ℋ 𝐵) ∧ 𝑥 ⊆ 𝐵))) |
| 9 | 1, 8 | bitr4i 281 | . . . . 5 ⊢ ((((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨ℋ 𝐵)) ∧ 𝑥 ⊆ 𝐵) ↔ ((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵)) |
| 10 | 3, 2 | chincli 31944 | . . . . . . . 8 ⊢ (𝐴 ∩ 𝐵) ∈ Cℋ |
| 11 | cvnbtwn4 32773 | . . . . . . . 8 ⊢ (((𝐴 ∩ 𝐵) ∈ Cℋ ∧ 𝐵 ∈ Cℋ ∧ 𝑥 ∈ Cℋ ) → ((𝐴 ∩ 𝐵) ⋖ℋ 𝐵 → (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) → (𝑥 = (𝐴 ∩ 𝐵) ∨ 𝑥 = 𝐵)))) | |
| 12 | 10, 2, 11 | mp3an12 1480 | . . . . . . 7 ⊢ (𝑥 ∈ Cℋ → ((𝐴 ∩ 𝐵) ⋖ℋ 𝐵 → (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) → (𝑥 = (𝐴 ∩ 𝐵) ∨ 𝑥 = 𝐵)))) |
| 13 | 12 | impcom 413 | . . . . . 6 ⊢ (((𝐴 ∩ 𝐵) ⋖ℋ 𝐵 ∧ 𝑥 ∈ Cℋ ) → (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) → (𝑥 = (𝐴 ∩ 𝐵) ∨ 𝑥 = 𝐵))) |
| 14 | 10, 3 | chjcomi 31952 | . . . . . . . . . . 11 ⊢ ((𝐴 ∩ 𝐵) ∨ℋ 𝐴) = (𝐴 ∨ℋ (𝐴 ∩ 𝐵)) |
| 15 | 3, 2 | chabs1i 32002 | . . . . . . . . . . 11 ⊢ (𝐴 ∨ℋ (𝐴 ∩ 𝐵)) = 𝐴 |
| 16 | 14, 15 | eqtri 2783 | . . . . . . . . . 10 ⊢ ((𝐴 ∩ 𝐵) ∨ℋ 𝐴) = 𝐴 |
| 17 | 16 | ineq1i 4162 | . . . . . . . . 9 ⊢ (((𝐴 ∩ 𝐵) ∨ℋ 𝐴) ∩ 𝐵) = (𝐴 ∩ 𝐵) |
| 18 | 10 | chjidmi 32005 | . . . . . . . . 9 ⊢ ((𝐴 ∩ 𝐵) ∨ℋ (𝐴 ∩ 𝐵)) = (𝐴 ∩ 𝐵) |
| 19 | 17, 18 | eqtr4i 2786 | . . . . . . . 8 ⊢ (((𝐴 ∩ 𝐵) ∨ℋ 𝐴) ∩ 𝐵) = ((𝐴 ∩ 𝐵) ∨ℋ (𝐴 ∩ 𝐵)) |
| 20 | oveq1 7421 | . . . . . . . . 9 ⊢ (𝑥 = (𝐴 ∩ 𝐵) → (𝑥 ∨ℋ 𝐴) = ((𝐴 ∩ 𝐵) ∨ℋ 𝐴)) | |
| 21 | 20 | ineq1d 4165 | . . . . . . . 8 ⊢ (𝑥 = (𝐴 ∩ 𝐵) → ((𝑥 ∨ℋ 𝐴) ∩ 𝐵) = (((𝐴 ∩ 𝐵) ∨ℋ 𝐴) ∩ 𝐵)) |
| 22 | oveq1 7421 | . . . . . . . 8 ⊢ (𝑥 = (𝐴 ∩ 𝐵) → (𝑥 ∨ℋ (𝐴 ∩ 𝐵)) = ((𝐴 ∩ 𝐵) ∨ℋ (𝐴 ∩ 𝐵))) | |
| 23 | 19, 21, 22 | 3eqtr4a 2821 | . . . . . . 7 ⊢ (𝑥 = (𝐴 ∩ 𝐵) → ((𝑥 ∨ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨ℋ (𝐴 ∩ 𝐵))) |
| 24 | incom 4155 | . . . . . . . . 9 ⊢ ((𝐵 ∨ℋ 𝐴) ∩ 𝐵) = (𝐵 ∩ (𝐵 ∨ℋ 𝐴)) | |
| 25 | 2, 3 | chabs2i 32003 | . . . . . . . . . 10 ⊢ (𝐵 ∩ (𝐵 ∨ℋ 𝐴)) = 𝐵 |
| 26 | 2, 3 | chabs1i 32002 | . . . . . . . . . 10 ⊢ (𝐵 ∨ℋ (𝐵 ∩ 𝐴)) = 𝐵 |
| 27 | incom 4155 | . . . . . . . . . . 11 ⊢ (𝐵 ∩ 𝐴) = (𝐴 ∩ 𝐵) | |
| 28 | 27 | oveq2i 7425 | . . . . . . . . . 10 ⊢ (𝐵 ∨ℋ (𝐵 ∩ 𝐴)) = (𝐵 ∨ℋ (𝐴 ∩ 𝐵)) |
| 29 | 25, 26, 28 | 3eqtr2i 2789 | . . . . . . . . 9 ⊢ (𝐵 ∩ (𝐵 ∨ℋ 𝐴)) = (𝐵 ∨ℋ (𝐴 ∩ 𝐵)) |
| 30 | 24, 29 | eqtri 2783 | . . . . . . . 8 ⊢ ((𝐵 ∨ℋ 𝐴) ∩ 𝐵) = (𝐵 ∨ℋ (𝐴 ∩ 𝐵)) |
| 31 | oveq1 7421 | . . . . . . . . 9 ⊢ (𝑥 = 𝐵 → (𝑥 ∨ℋ 𝐴) = (𝐵 ∨ℋ 𝐴)) | |
| 32 | 31 | ineq1d 4165 | . . . . . . . 8 ⊢ (𝑥 = 𝐵 → ((𝑥 ∨ℋ 𝐴) ∩ 𝐵) = ((𝐵 ∨ℋ 𝐴) ∩ 𝐵)) |
| 33 | oveq1 7421 | . . . . . . . 8 ⊢ (𝑥 = 𝐵 → (𝑥 ∨ℋ (𝐴 ∩ 𝐵)) = (𝐵 ∨ℋ (𝐴 ∩ 𝐵))) | |
| 34 | 30, 32, 33 | 3eqtr4a 2821 | . . . . . . 7 ⊢ (𝑥 = 𝐵 → ((𝑥 ∨ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨ℋ (𝐴 ∩ 𝐵))) |
| 35 | 23, 34 | jaoi 871 | . . . . . 6 ⊢ ((𝑥 = (𝐴 ∩ 𝐵) ∨ 𝑥 = 𝐵) → ((𝑥 ∨ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨ℋ (𝐴 ∩ 𝐵))) |
| 36 | 13, 35 | syl6 36 | . . . . 5 ⊢ (((𝐴 ∩ 𝐵) ⋖ℋ 𝐵 ∧ 𝑥 ∈ Cℋ ) → (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ 𝐵) → ((𝑥 ∨ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨ℋ (𝐴 ∩ 𝐵)))) |
| 37 | 9, 36 | biimtrid 245 | . . . 4 ⊢ (((𝐴 ∩ 𝐵) ⋖ℋ 𝐵 ∧ 𝑥 ∈ Cℋ ) → ((((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨ℋ 𝐵)) ∧ 𝑥 ⊆ 𝐵) → ((𝑥 ∨ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨ℋ (𝐴 ∩ 𝐵)))) |
| 38 | 37 | exp4b 436 | . . 3 ⊢ ((𝐴 ∩ 𝐵) ⋖ℋ 𝐵 → (𝑥 ∈ Cℋ → (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨ℋ 𝐵)) → (𝑥 ⊆ 𝐵 → ((𝑥 ∨ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨ℋ (𝐴 ∩ 𝐵)))))) |
| 39 | 38 | ralrimiv 3153 | . 2 ⊢ ((𝐴 ∩ 𝐵) ⋖ℋ 𝐵 → ∀𝑥 ∈ Cℋ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨ℋ 𝐵)) → (𝑥 ⊆ 𝐵 → ((𝑥 ∨ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨ℋ (𝐴 ∩ 𝐵))))) |
| 40 | 3, 2 | mdsl1i 32805 | . 2 ⊢ (∀𝑥 ∈ Cℋ (((𝐴 ∩ 𝐵) ⊆ 𝑥 ∧ 𝑥 ⊆ (𝐴 ∨ℋ 𝐵)) → (𝑥 ⊆ 𝐵 → ((𝑥 ∨ℋ 𝐴) ∩ 𝐵) = (𝑥 ∨ℋ (𝐴 ∩ 𝐵)))) ↔ 𝐴 𝑀ℋ 𝐵) |
| 41 | 39, 40 | sylib 221 | 1 ⊢ ((𝐴 ∩ 𝐵) ⋖ℋ 𝐵 → 𝐴 𝑀ℋ 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∨ wo 861 = wceq 1570 ∈ wcel 2145 ∀wral 3076 ∩ cin 3898 ⊆ wss 3899 class class class wbr 5103 (class class class)co 7414 Cℋ cch 31413 ∨ℋ chj 31417 ⋖ℋ ccv 31448 𝑀ℋ cmd 31450 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2732 ax-rep 5232 ax-sep 5251 ax-nul 5263 ax-pow 5330 ax-pr 5398 ax-un 7737 ax-inf2 9623 ax-cc 10440 ax-cnex 11183 ax-resscn 11184 ax-1cn 11185 ax-icn 11186 ax-addcl 11187 ax-addrcl 11188 ax-mulcl 11189 ax-mulrcl 11190 ax-mulcom 11191 ax-addass 11192 ax-mulass 11193 ax-distr 11194 ax-i2m1 11195 ax-1ne0 11196 ax-1rid 11197 ax-rnegex 11198 ax-rrecex 11199 ax-cnre 11200 ax-pre-lttri 11201 ax-pre-lttrn 11202 ax-pre-ltadd 11203 ax-pre-mulgt0 11204 ax-pre-sup 11205 ax-addf 11206 ax-mulf 11207 ax-hilex 31483 ax-hfvadd 31484 ax-hvcom 31485 ax-hvass 31486 ax-hv0cl 31487 ax-hvaddid 31488 ax-hfvmul 31489 ax-hvmulid 31490 ax-hvmulass 31491 ax-hvdistr1 31492 ax-hvdistr2 31493 ax-hvmul0 31494 ax-hfi 31563 ax-his1 31566 ax-his2 31567 ax-his3 31568 ax-his4 31569 ax-hcompl 31686 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4591 df-uni 4868 df-int 4908 df-iun 4953 df-iin 4954 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5550 df-eprel 5555 df-po 5563 df-so 5564 df-fr 5608 df-se 5609 df-we 5610 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-ima 5668 df-pred 6299 df-ord 6360 df-on 6361 df-lim 6362 df-suc 6363 df-iota 6489 df-fun 6535 df-fn 6536 df-f 6537 df-f1 6538 df-fo 6539 df-f1o 6540 df-fv 6541 df-isom 6542 df-riota 7371 df-ov 7417 df-oprab 7418 df-mpo 7419 df-of 7679 df-om 7864 df-1st 7987 df-2nd 7988 df-supp 8160 df-frecs 8281 df-wrecs 8312 df-recs 8361 df-rdg 8400 df-1o 8458 df-2o 8459 df-oadd 8462 df-omul 8463 df-er 8699 df-map 8831 df-pm 8832 df-ixp 8908 df-en 8956 df-dom 8957 df-sdom 8958 df-fin 8959 df-fsupp 9335 df-fi 9384 df-sup 9415 df-inf 9416 df-oi 9485 df-card 9947 df-acn 9950 df-pnf 11272 df-mnf 11273 df-xr 11274 df-ltxr 11275 df-le 11276 df-sub 11470 df-neg 11471 df-div 11899 df-nn 12261 df-2 12330 df-3 12331 df-4 12332 df-5 12333 df-6 12334 df-7 12335 df-8 12336 df-9 12337 df-n0 12532 df-z 12619 df-dec 12740 df-uz 12891 df-q 13001 df-rp 13046 df-xneg 13166 df-xadd 13167 df-xmul 13168 df-ioo 13405 df-ico 13407 df-icc 13408 df-fz 13565 df-fzo 13713 df-fl 13856 df-seq 14069 df-exp 14129 df-hash 14398 df-cj 15189 df-re 15190 df-im 15191 df-sqrt 15325 df-abs 15326 df-clim 15578 df-rlim 15579 df-sum 15777 df-struct 17242 df-sets 17259 df-slot 17277 df-ndx 17289 df-base 17305 df-ress 17326 df-plusg 17358 df-mulr 17359 df-starv 17360 df-sca 17361 df-vsca 17362 df-ip 17363 df-tset 17364 df-ple 17365 df-ds 17367 df-unif 17368 df-hom 17369 df-cco 17370 df-rest 17510 df-topn 17511 df-0g 17529 df-gsum 17530 df-topgen 17531 df-pt 17532 df-prds 17535 df-xrs 17591 df-qtop 17596 df-imas 17597 df-xps 17599 df-mre 17673 df-mrc 17674 df-acs 17676 df-mgm 18733 df-sgrp 18824 df-mnd 18840 df-submnd 18895 df-mulg 19194 df-cntz 19447 df-cmn 19912 df-psmet 21580 df-xmet 21581 df-met 21582 df-bl 21583 df-mopn 21584 df-fbas 21585 df-fg 21586 df-cnfld 21589 df-top 23122 df-topon 23139 df-topsp 23161 df-bases 23174 df-cld 23247 df-ntr 23248 df-cls 23249 df-nei 23326 df-cn 23455 df-cnp 23456 df-lm 23457 df-haus 23543 df-tx 23791 df-hmeo 23984 df-fil 24075 df-fm 24167 df-flim 24168 df-flf 24169 df-xms 24549 df-ms 24550 df-tms 24551 df-cfil 25486 df-cau 25487 df-cmet 25488 df-grpo 30977 df-gid 30978 df-ginv 30979 df-gdiv 30980 df-ablo 31029 df-vc 31043 df-nv 31076 df-va 31079 df-ba 31080 df-sm 31081 df-0v 31082 df-vs 31083 df-nmcv 31084 df-ims 31085 df-dip 31185 df-ssp 31206 df-ph 31297 df-cbn 31347 df-hnorm 31452 df-hba 31453 df-hvsub 31455 df-hlim 31456 df-hcau 31457 df-sh 31691 df-ch 31705 df-oc 31736 df-ch0 31737 df-shs 31792 df-chj 31794 df-cv 32763 df-md 32764 |
| This theorem is used by: cvmd 32820 |
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