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| Mirrors > Home > MPE Home > Th. List > ecqusaddcl | Structured version Visualization version GIF version | ||
| Description: Closure of the addition in a quotient group. (Contributed by AV, 24-Feb-2025.) |
| Ref | Expression |
|---|---|
| ecqusaddd.i | ⊢ (𝜑 → 𝐼 ∈ (NrmSGrp‘𝑅)) |
| ecqusaddd.b | ⊢ 𝐵 = (Base‘𝑅) |
| ecqusaddd.g | ⊢ ∼ = (𝑅 ~QG 𝐼) |
| ecqusaddd.q | ⊢ 𝑄 = (𝑅 /s ∼ ) |
| Ref | Expression |
|---|---|
| ecqusaddcl | ⊢ ((𝜑 ∧ (𝐴 ∈ 𝐵 ∧ 𝐶 ∈ 𝐵)) → ([𝐴] ∼ (+g‘𝑄)[𝐶] ∼ ) ∈ (Base‘𝑄)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ecqusaddd.i | . . 3 ⊢ (𝜑 → 𝐼 ∈ (NrmSGrp‘𝑅)) | |
| 2 | ecqusaddd.b | . . 3 ⊢ 𝐵 = (Base‘𝑅) | |
| 3 | ecqusaddd.g | . . 3 ⊢ ∼ = (𝑅 ~QG 𝐼) | |
| 4 | ecqusaddd.q | . . 3 ⊢ 𝑄 = (𝑅 /s ∼ ) | |
| 5 | 1, 2, 3, 4 | ecqusaddd 19312 | . 2 ⊢ ((𝜑 ∧ (𝐴 ∈ 𝐵 ∧ 𝐶 ∈ 𝐵)) → [(𝐴(+g‘𝑅)𝐶)] ∼ = ([𝐴] ∼ (+g‘𝑄)[𝐶] ∼ )) |
| 6 | 1 | elfvexd 6922 | . . 3 ⊢ (𝜑 → 𝑅 ∈ V) |
| 7 | nsgsubg 19273 | . . . . . . 7 ⊢ (𝐼 ∈ (NrmSGrp‘𝑅) → 𝐼 ∈ (SubGrp‘𝑅)) | |
| 8 | subgrcl 19246 | . . . . . . 7 ⊢ (𝐼 ∈ (SubGrp‘𝑅) → 𝑅 ∈ Grp) | |
| 9 | 1, 7, 8 | 3syl 19 | . . . . . 6 ⊢ (𝜑 → 𝑅 ∈ Grp) |
| 10 | 9 | anim1i 627 | . . . . 5 ⊢ ((𝜑 ∧ (𝐴 ∈ 𝐵 ∧ 𝐶 ∈ 𝐵)) → (𝑅 ∈ Grp ∧ (𝐴 ∈ 𝐵 ∧ 𝐶 ∈ 𝐵))) |
| 11 | 3anass 1111 | . . . . 5 ⊢ ((𝑅 ∈ Grp ∧ 𝐴 ∈ 𝐵 ∧ 𝐶 ∈ 𝐵) ↔ (𝑅 ∈ Grp ∧ (𝐴 ∈ 𝐵 ∧ 𝐶 ∈ 𝐵))) | |
| 12 | 10, 11 | sylibr 237 | . . . 4 ⊢ ((𝜑 ∧ (𝐴 ∈ 𝐵 ∧ 𝐶 ∈ 𝐵)) → (𝑅 ∈ Grp ∧ 𝐴 ∈ 𝐵 ∧ 𝐶 ∈ 𝐵)) |
| 13 | eqid 2765 | . . . . 5 ⊢ (+g‘𝑅) = (+g‘𝑅) | |
| 14 | 2, 13 | grpcl 19057 | . . . 4 ⊢ ((𝑅 ∈ Grp ∧ 𝐴 ∈ 𝐵 ∧ 𝐶 ∈ 𝐵) → (𝐴(+g‘𝑅)𝐶) ∈ 𝐵) |
| 15 | 12, 14 | syl 18 | . . 3 ⊢ ((𝜑 ∧ (𝐴 ∈ 𝐵 ∧ 𝐶 ∈ 𝐵)) → (𝐴(+g‘𝑅)𝐶) ∈ 𝐵) |
| 16 | eqid 2765 | . . . 4 ⊢ (Base‘𝑄) = (Base‘𝑄) | |
| 17 | 3, 4, 2, 16 | quseccl0 19305 | . . 3 ⊢ ((𝑅 ∈ V ∧ (𝐴(+g‘𝑅)𝐶) ∈ 𝐵) → [(𝐴(+g‘𝑅)𝐶)] ∼ ∈ (Base‘𝑄)) |
| 18 | 6, 15, 17 | syl2an2r 698 | . 2 ⊢ ((𝜑 ∧ (𝐴 ∈ 𝐵 ∧ 𝐶 ∈ 𝐵)) → [(𝐴(+g‘𝑅)𝐶)] ∼ ∈ (Base‘𝑄)) |
| 19 | 5, 18 | eqeltrrd 2866 | 1 ⊢ ((𝜑 ∧ (𝐴 ∈ 𝐵 ∧ 𝐶 ∈ 𝐵)) → ([𝐴] ∼ (+g‘𝑄)[𝐶] ∼ ) ∈ (Base‘𝑄)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∧ w3a 1103 = wceq 1570 ∈ wcel 2146 Vcvv 3457 ‘cfv 6541 (class class class)co 7420 [cec 8699 Basecbs 17296 +gcplusg 17337 /s cqus 17586 Grpcgrp 19049 SubGrpcsubg 19235 NrmSGrpcnsg 19236 ~QG cqg 19237 |
| 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 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-rep 5240 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7743 ax-cnex 11176 ax-resscn 11177 ax-1cn 11178 ax-icn 11179 ax-addcl 11180 ax-addrcl 11181 ax-mulcl 11182 ax-mulrcl 11183 ax-mulcom 11184 ax-addass 11185 ax-mulass 11186 ax-distr 11187 ax-i2m1 11188 ax-1ne0 11189 ax-1rid 11190 ax-rnegex 11191 ax-rrecex 11192 ax-cnre 11193 ax-pre-lttri 11194 ax-pre-lttrn 11195 ax-pre-ltadd 11196 ax-pre-mulgt0 11197 |
| 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 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-rmo 3371 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-pss 3926 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-tp 4596 df-op 4598 df-uni 4875 df-iun 4960 df-br 5112 df-opab 5176 df-mpt 5195 df-tr 5221 df-id 5558 df-eprel 5563 df-po 5571 df-so 5572 df-fr 5616 df-we 5618 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-pred 6307 df-ord 6368 df-on 6369 df-lim 6370 df-suc 6371 df-iota 6497 df-fun 6543 df-fn 6544 df-f 6545 df-f1 6546 df-fo 6547 df-f1o 6548 df-fv 6549 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7870 df-1st 7993 df-2nd 7994 df-frecs 8285 df-wrecs 8316 df-recs 8365 df-rdg 8404 df-1o 8460 df-er 8701 df-ec 8703 df-qs 8707 df-en 8951 df-dom 8952 df-sdom 8953 df-fin 8954 df-sup 9410 df-inf 9411 df-pnf 11265 df-mnf 11266 df-xr 11267 df-ltxr 11268 df-le 11269 df-sub 11463 df-neg 11464 df-nn 12254 df-2 12323 df-3 12324 df-4 12325 df-5 12326 df-6 12327 df-7 12328 df-8 12329 df-9 12330 df-n0 12525 df-z 12612 df-dec 12733 df-uz 12884 df-fz 13557 df-struct 17234 df-sets 17251 df-slot 17269 df-ndx 17281 df-base 17297 df-ress 17318 df-plusg 17350 df-mulr 17351 df-sca 17353 df-vsca 17354 df-ip 17355 df-tset 17356 df-ple 17357 df-ds 17359 df-0g 17521 df-imas 17589 df-qus 17590 df-mgm 18725 df-sgrp 18814 df-mnd 18830 df-grp 19052 df-minusg 19053 df-subg 19238 df-nsg 19239 df-eqg 19240 |
| This theorem is used by: rngqiprngghm 21494 |
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