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| Mirrors > Home > MPE Home > Th. List > Mathboxes > lmicqusker | Structured version Visualization version GIF version | ||
| Description: The image 𝐻 of a module homomorphism 𝐹 is isomorphic with the quotient module 𝑄 over 𝐹's kernel 𝐾. This is part of what is sometimes called the first isomorphism theorem for modules. (Contributed by Thierry Arnoux, 10-Mar-2025.) |
| Ref | Expression |
|---|---|
| lmhmqusker.1 | ⊢ 0 = (0g‘𝐻) |
| lmhmqusker.f | ⊢ (𝜑 → 𝐹 ∈ (𝐺 LMHom 𝐻)) |
| lmhmqusker.k | ⊢ 𝐾 = (◡𝐹 “ { 0 }) |
| lmhmqusker.q | ⊢ 𝑄 = (𝐺 /s (𝐺 ~QG 𝐾)) |
| lmhmqusker.s | ⊢ (𝜑 → ran 𝐹 = (Base‘𝐻)) |
| Ref | Expression |
|---|---|
| lmicqusker | ⊢ (𝜑 → 𝑄 ≃𝑚 𝐻) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lmhmqusker.1 | . . 3 ⊢ 0 = (0g‘𝐻) | |
| 2 | lmhmqusker.f | . . 3 ⊢ (𝜑 → 𝐹 ∈ (𝐺 LMHom 𝐻)) | |
| 3 | lmhmqusker.k | . . 3 ⊢ 𝐾 = (◡𝐹 “ { 0 }) | |
| 4 | lmhmqusker.q | . . 3 ⊢ 𝑄 = (𝐺 /s (𝐺 ~QG 𝐾)) | |
| 5 | lmhmqusker.s | . . 3 ⊢ (𝜑 → ran 𝐹 = (Base‘𝐻)) | |
| 6 | imaeq2 6054 | . . . . 5 ⊢ (𝑝 = 𝑞 → (𝐹 “ 𝑝) = (𝐹 “ 𝑞)) | |
| 7 | 6 | unieqd 4880 | . . . 4 ⊢ (𝑝 = 𝑞 → ∪ (𝐹 “ 𝑝) = ∪ (𝐹 “ 𝑞)) |
| 8 | 7 | cbvmptv 5209 | . . 3 ⊢ (𝑝 ∈ (Base‘𝑄) ↦ ∪ (𝐹 “ 𝑝)) = (𝑞 ∈ (Base‘𝑄) ↦ ∪ (𝐹 “ 𝑞)) |
| 9 | 1, 2, 3, 4, 5, 8 | lmhmqusker 33879 | . 2 ⊢ (𝜑 → (𝑝 ∈ (Base‘𝑄) ↦ ∪ (𝐹 “ 𝑝)) ∈ (𝑄 LMIso 𝐻)) |
| 10 | brlmici 21283 | . 2 ⊢ ((𝑝 ∈ (Base‘𝑄) ↦ ∪ (𝐹 “ 𝑝)) ∈ (𝑄 LMIso 𝐻) → 𝑄 ≃𝑚 𝐻) | |
| 11 | 9, 10 | syl 18 | 1 ⊢ (𝜑 → 𝑄 ≃𝑚 𝐻) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2145 {csn 4584 ∪ cuni 4867 class class class wbr 5103 ↦ cmpt 5186 ◡ccnv 5654 ran crn 5656 “ cima 5658 ‘cfv 6535 (class class class)co 7416 Basecbs 17326 0gc0g 17549 /s cqus 17616 ~QG cqg 19271 LMHom clmhm 21233 LMIso clmim 21234 ≃𝑚 clmic 21235 |
| 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 7742 ax-cnex 11205 ax-resscn 11206 ax-1cn 11207 ax-icn 11208 ax-addcl 11209 ax-addrcl 11210 ax-mulcl 11211 ax-mulrcl 11212 ax-mulcom 11213 ax-addass 11214 ax-mulass 11215 ax-distr 11216 ax-i2m1 11217 ax-1ne0 11218 ax-1rid 11219 ax-rnegex 11220 ax-rrecex 11221 ax-cnre 11222 ax-pre-lttri 11223 ax-pre-lttrn 11224 ax-pre-ltadd 11225 ax-pre-mulgt0 11226 |
| 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-iun 4953 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-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 6301 df-ord 6362 df-on 6363 df-lim 6364 df-suc 6365 df-iota 6491 df-fun 6537 df-fn 6538 df-f 6539 df-f1 6540 df-fo 6541 df-f1o 6542 df-fv 6543 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-om 7869 df-1st 7992 df-2nd 7993 df-frecs 8285 df-wrecs 8316 df-recs 8365 df-rdg 8404 df-1o 8462 df-er 8703 df-ec 8705 df-qs 8709 df-map 8835 df-en 8960 df-dom 8961 df-sdom 8962 df-fin 8963 df-sup 9419 df-inf 9420 df-pnf 11294 df-mnf 11295 df-xr 11296 df-ltxr 11297 df-le 11298 df-sub 11492 df-neg 11493 df-nn 12283 df-2 12352 df-3 12353 df-4 12354 df-5 12355 df-6 12356 df-7 12357 df-8 12358 df-9 12359 df-n0 12554 df-z 12641 df-dec 12762 df-uz 12913 df-fz 13587 df-struct 17264 df-sets 17281 df-slot 17299 df-ndx 17311 df-base 17327 df-ress 17348 df-plusg 17380 df-mulr 17381 df-sca 17383 df-vsca 17384 df-ip 17385 df-tset 17386 df-ple 17387 df-ds 17389 df-0g 17551 df-imas 17619 df-qus 17620 df-mgm 18755 df-sgrp 18847 df-mnd 18863 df-submnd 18918 df-grp 19086 df-minusg 19087 df-sbg 19088 df-subg 19272 df-nsg 19273 df-eqg 19274 df-ghm 19367 df-gim 19412 df-cmn 19935 df-abl 19936 df-mgp 20300 df-rng 20314 df-ur 20347 df-ring 20400 df-lmod 21076 df-lss 21146 df-lmhm 21236 df-lmim 21237 df-lmic 21238 |
| This theorem is used by: r1pquslmic 34053 |
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