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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 32077 | . . . . . . . . 9 ⊢ 𝐵 ⊆ (𝐴 ∨ℋ 𝐵) |
| 5 | sstr 3916 | . . . . . . . . 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 32067 | . . . . . . . 8 ⊢ (𝐴 ∩ 𝐵) ∈ Cℋ |
| 11 | cvnbtwn4 32896 | . . . . . . . 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 32075 | . . . . . . . . . . 11 ⊢ ((𝐴 ∩ 𝐵) ∨ℋ 𝐴) = (𝐴 ∨ℋ (𝐴 ∩ 𝐵)) |
| 15 | 3, 2 | chabs1i 32125 | . . . . . . . . . . 11 ⊢ (𝐴 ∨ℋ (𝐴 ∩ 𝐵)) = 𝐴 |
| 16 | 14, 15 | eqtri 2783 | . . . . . . . . . 10 ⊢ ((𝐴 ∩ 𝐵) ∨ℋ 𝐴) = 𝐴 |
| 17 | 16 | ineq1i 4113 | . . . . . . . . 9 ⊢ (((𝐴 ∩ 𝐵) ∨ℋ 𝐴) ∩ 𝐵) = (𝐴 ∩ 𝐵) |
| 18 | 10 | chjidmi 32128 | . . . . . . . . 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 7427 | . . . . . . . . 9 ⊢ (𝑥 = (𝐴 ∩ 𝐵) → (𝑥 ∨ℋ 𝐴) = ((𝐴 ∩ 𝐵) ∨ℋ 𝐴)) | |
| 21 | 20 | ineq1d 4116 | . . . . . . . 8 ⊢ (𝑥 = (𝐴 ∩ 𝐵) → ((𝑥 ∨ℋ 𝐴) ∩ 𝐵) = (((𝐴 ∩ 𝐵) ∨ℋ 𝐴) ∩ 𝐵)) |
| 22 | oveq1 7427 | . . . . . . . 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 4106 | . . . . . . . . 9 ⊢ ((𝐵 ∨ℋ 𝐴) ∩ 𝐵) = (𝐵 ∩ (𝐵 ∨ℋ 𝐴)) | |
| 25 | 2, 3 | chabs2i 32126 | . . . . . . . . . 10 ⊢ (𝐵 ∩ (𝐵 ∨ℋ 𝐴)) = 𝐵 |
| 26 | 2, 3 | chabs1i 32125 | . . . . . . . . . 10 ⊢ (𝐵 ∨ℋ (𝐵 ∩ 𝐴)) = 𝐵 |
| 27 | incom 4106 | . . . . . . . . . . 11 ⊢ (𝐵 ∩ 𝐴) = (𝐴 ∩ 𝐵) | |
| 28 | 27 | oveq2i 7431 | . . . . . . . . . 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 7427 | . . . . . . . . 9 ⊢ (𝑥 = 𝐵 → (𝑥 ∨ℋ 𝐴) = (𝐵 ∨ℋ 𝐴)) | |
| 32 | 31 | ineq1d 4116 | . . . . . . . 8 ⊢ (𝑥 = 𝐵 → ((𝑥 ∨ℋ 𝐴) ∩ 𝐵) = ((𝐵 ∨ℋ 𝐴) ∩ 𝐵)) |
| 33 | oveq1 7427 | . . . . . . . 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 32928 | . 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 1569 ∈ wcel 2144 ∀wral 3076 ⊆ wss 3895 ∩ cin 4089 class class class wbr 5102 (class class class)co 7420 Cℋ cch 31536 ∨ℋ chj 31540 ⋖ℋ ccv 31571 𝑀ℋ cmd 31573 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7751 ax-inf2 9645 ax-cc 10516 ax-cnex 11259 ax-resscn 11260 ax-1cn 11261 ax-icn 11262 ax-addcl 11263 ax-addrcl 11264 ax-mulcl 11265 ax-mulrcl 11266 ax-mulcom 11267 ax-addass 11268 ax-mulass 11269 ax-distr 11270 ax-i2m1 11271 ax-1ne0 11272 ax-1rid 11273 ax-rnegex 11274 ax-rrecex 11275 ax-cnre 11276 ax-pre-lttri 11277 ax-pre-lttrn 11278 ax-pre-ltadd 11279 ax-pre-mulgt0 11280 ax-pre-sup 11281 ax-addf 11282 ax-mulf 11283 ax-hilex 31606 ax-hfvadd 31607 ax-hvcom 31608 ax-hvass 31609 ax-hv0cl 31610 ax-hvaddid 31611 ax-hfvmul 31612 ax-hvmulid 31613 ax-hvmulass 31614 ax-hvdistr1 31615 ax-hvdistr2 31616 ax-hvmul0 31617 ax-hfi 31686 ax-his1 31689 ax-his2 31690 ax-his3 31691 ax-his4 31692 ax-hcompl 31809 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 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 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4835 df-uni 4867 df-int 4907 df-iun 4952 df-iin 4953 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-se 5604 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-isom 6547 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-of 7693 df-om 7878 df-1st 8001 df-2nd 8002 df-supp 8180 df-frecs 8302 df-wrecs 8333 df-recs 8382 df-rdg 8421 df-1o 8479 df-2o 8480 df-oadd 8483 df-omul 8484 df-er 8720 df-map 8852 df-pm 8853 df-ixp 8929 df-en 8977 df-dom 8978 df-sdom 8979 df-fin 8980 df-fsupp 9357 df-fi 9406 df-sup 9437 df-inf 9438 df-oi 9507 df-card 10023 df-acn 10026 df-pnf 11348 df-mnf 11349 df-xr 11350 df-ltxr 11351 df-le 11352 df-sub 11546 df-neg 11547 df-div 11977 df-nn 12339 df-2 12408 df-3 12409 df-4 12410 df-5 12411 df-6 12412 df-7 12413 df-8 12414 df-9 12415 df-n0 12610 df-z 12697 df-dec 12818 df-uz 12969 df-q 13079 df-rp 13124 df-xneg 13244 df-xadd 13245 df-xmul 13246 df-ioo 13483 df-ico 13485 df-icc 13486 df-fz 13643 df-fzo 13792 df-fl 13935 df-seq 14148 df-exp 14208 df-hash 14478 df-cj 15271 df-re 15272 df-im 15273 df-sqrt 15407 df-abs 15408 df-clim 15660 df-rlim 15661 df-sum 15859 df-struct 17330 df-sets 17347 df-slot 17365 df-ndx 17377 df-base 17393 df-ress 17414 df-plusg 17446 df-mulr 17447 df-starv 17448 df-sca 17449 df-vsca 17450 df-ip 17451 df-tset 17452 df-ple 17453 df-ds 17455 df-unif 17456 df-hom 17457 df-cco 17458 df-rest 17598 df-topn 17599 df-0g 17617 df-gsum 17618 df-topgen 17619 df-pt 17620 df-prds 17623 df-xrs 17679 df-qtop 17684 df-imas 17685 df-xps 17687 df-mre 17761 df-mrc 17762 df-acs 17764 df-mgm 18821 df-sgrp 18913 df-mnd 18929 df-submnd 18984 df-mulg 19283 df-cntz 19536 df-cmn 20001 df-psmet 21675 df-xmet 21676 df-met 21677 df-bl 21678 df-mopn 21679 df-fbas 21680 df-fg 21681 df-cnfld 21684 df-top 23217 df-topon 23234 df-topsp 23256 df-bases 23269 df-cld 23342 df-ntr 23343 df-cls 23344 df-nei 23421 df-cn 23550 df-cnp 23551 df-lm 23552 df-haus 23638 df-tx 23886 df-hmeo 24079 df-fil 24170 df-fm 24262 df-flim 24263 df-flf 24264 df-xms 24644 df-ms 24645 df-tms 24646 df-cfil 25581 df-cau 25582 df-cmet 25583 df-grpo 31100 df-gid 31101 df-ginv 31102 df-gdiv 31103 df-ablo 31152 df-vc 31166 df-nv 31199 df-va 31202 df-ba 31203 df-sm 31204 df-0v 31205 df-vs 31206 df-nmcv 31207 df-ims 31208 df-dip 31308 df-ssp 31329 df-ph 31420 df-cbn 31470 df-hnorm 31575 df-hba 31576 df-hvsub 31578 df-hlim 31579 df-hcau 31580 df-sh 31814 df-ch 31828 df-oc 31859 df-ch0 31860 df-shs 31915 df-chj 31917 df-cv 32886 df-md 32887 |
| This theorem is used by: cvmd 32943 |
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