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| Mirrors > Home > MPE Home > Th. List > Mathboxes > prjspnerlem | Structured version Visualization version GIF version | ||
| Description: A lemma showing that the equivalence relation used in prjspnval2 42857 and the equivalence relation used in prjspval 42842 are equal, but only with the antecedent 𝐾 ∈ DivRing. (Contributed by SN, 15-Jul-2023.) |
| Ref | Expression |
|---|---|
| prjspnerlem.e | ⊢ ∼ = {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ ∃𝑙 ∈ 𝑆 𝑥 = (𝑙 · 𝑦))} |
| prjspnerlem.w | ⊢ 𝑊 = (𝐾 freeLMod (0...𝑁)) |
| prjspnerlem.b | ⊢ 𝐵 = ((Base‘𝑊) ∖ {(0g‘𝑊)}) |
| prjspnerlem.s | ⊢ 𝑆 = (Base‘𝐾) |
| prjspnerlem.x | ⊢ · = ( ·𝑠 ‘𝑊) |
| Ref | Expression |
|---|---|
| prjspnerlem | ⊢ (𝐾 ∈ DivRing → ∼ = {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ ∃𝑙 ∈ (Base‘(Scalar‘𝑊))𝑥 = (𝑙 · 𝑦))}) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | prjspnerlem.e | . 2 ⊢ ∼ = {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ ∃𝑙 ∈ 𝑆 𝑥 = (𝑙 · 𝑦))} | |
| 2 | prjspnerlem.s | . . . . . 6 ⊢ 𝑆 = (Base‘𝐾) | |
| 3 | ovex 7391 | . . . . . . . 8 ⊢ (0...𝑁) ∈ V | |
| 4 | prjspnerlem.w | . . . . . . . . 9 ⊢ 𝑊 = (𝐾 freeLMod (0...𝑁)) | |
| 5 | 4 | frlmsca 21708 | . . . . . . . 8 ⊢ ((𝐾 ∈ DivRing ∧ (0...𝑁) ∈ V) → 𝐾 = (Scalar‘𝑊)) |
| 6 | 3, 5 | mpan2 691 | . . . . . . 7 ⊢ (𝐾 ∈ DivRing → 𝐾 = (Scalar‘𝑊)) |
| 7 | 6 | fveq2d 6838 | . . . . . 6 ⊢ (𝐾 ∈ DivRing → (Base‘𝐾) = (Base‘(Scalar‘𝑊))) |
| 8 | 2, 7 | eqtrid 2783 | . . . . 5 ⊢ (𝐾 ∈ DivRing → 𝑆 = (Base‘(Scalar‘𝑊))) |
| 9 | 8 | rexeqdv 3297 | . . . 4 ⊢ (𝐾 ∈ DivRing → (∃𝑙 ∈ 𝑆 𝑥 = (𝑙 · 𝑦) ↔ ∃𝑙 ∈ (Base‘(Scalar‘𝑊))𝑥 = (𝑙 · 𝑦))) |
| 10 | 9 | anbi2d 630 | . . 3 ⊢ (𝐾 ∈ DivRing → (((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ ∃𝑙 ∈ 𝑆 𝑥 = (𝑙 · 𝑦)) ↔ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ ∃𝑙 ∈ (Base‘(Scalar‘𝑊))𝑥 = (𝑙 · 𝑦)))) |
| 11 | 10 | opabbidv 5164 | . 2 ⊢ (𝐾 ∈ DivRing → {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ ∃𝑙 ∈ 𝑆 𝑥 = (𝑙 · 𝑦))} = {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ ∃𝑙 ∈ (Base‘(Scalar‘𝑊))𝑥 = (𝑙 · 𝑦))}) |
| 12 | 1, 11 | eqtrid 2783 | 1 ⊢ (𝐾 ∈ DivRing → ∼ = {〈𝑥, 𝑦〉 ∣ ((𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵) ∧ ∃𝑙 ∈ (Base‘(Scalar‘𝑊))𝑥 = (𝑙 · 𝑦))}) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2113 ∃wrex 3060 Vcvv 3440 ∖ cdif 3898 {csn 4580 {copab 5160 ‘cfv 6492 (class class class)co 7358 0cc0 11026 ...cfz 13423 Basecbs 17136 Scalarcsca 17180 ·𝑠 cvsca 17181 0gc0g 17359 DivRingcdr 20662 freeLMod cfrlm 21701 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2184 ax-ext 2708 ax-rep 5224 ax-sep 5241 ax-nul 5251 ax-pow 5310 ax-pr 5377 ax-un 7680 ax-cnex 11082 ax-resscn 11083 ax-1cn 11084 ax-icn 11085 ax-addcl 11086 ax-addrcl 11087 ax-mulcl 11088 ax-mulrcl 11089 ax-mulcom 11090 ax-addass 11091 ax-mulass 11092 ax-distr 11093 ax-i2m1 11094 ax-1ne0 11095 ax-1rid 11096 ax-rnegex 11097 ax-rrecex 11098 ax-cnre 11099 ax-pre-lttri 11100 ax-pre-lttrn 11101 ax-pre-ltadd 11102 ax-pre-mulgt0 11103 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3061 df-reu 3351 df-rab 3400 df-v 3442 df-sbc 3741 df-csb 3850 df-dif 3904 df-un 3906 df-in 3908 df-ss 3918 df-pss 3921 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4581 df-pr 4583 df-tp 4585 df-op 4587 df-uni 4864 df-iun 4948 df-br 5099 df-opab 5161 df-mpt 5180 df-tr 5206 df-id 5519 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-pred 6259 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-om 7809 df-1st 7933 df-2nd 7934 df-frecs 8223 df-wrecs 8254 df-recs 8303 df-rdg 8341 df-1o 8397 df-er 8635 df-map 8765 df-ixp 8836 df-en 8884 df-dom 8885 df-sdom 8886 df-fin 8887 df-sup 9345 df-pnf 11168 df-mnf 11169 df-xr 11170 df-ltxr 11171 df-le 11172 df-sub 11366 df-neg 11367 df-nn 12146 df-2 12208 df-3 12209 df-4 12210 df-5 12211 df-6 12212 df-7 12213 df-8 12214 df-9 12215 df-n0 12402 df-z 12489 df-dec 12608 df-uz 12752 df-fz 13424 df-struct 17074 df-sets 17091 df-slot 17109 df-ndx 17121 df-base 17137 df-ress 17158 df-plusg 17190 df-mulr 17191 df-sca 17193 df-vsca 17194 df-ip 17195 df-tset 17196 df-ple 17197 df-ds 17199 df-hom 17201 df-cco 17202 df-prds 17367 df-pws 17369 df-sra 21125 df-rgmod 21126 df-dsmm 21687 df-frlm 21702 |
| This theorem is referenced by: prjspnval2 42857 prjspner 42858 prjspnvs 42859 |
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