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| Mirrors > Home > MPE Home > Th. List > Mathboxes > cznabel | Structured version Visualization version GIF version | ||
| Description: The ring constructed from a ℤ/nℤ structure by replacing the (multiplicative) ring operation by a constant operation is an abelian group. (Contributed by AV, 16-Feb-2020.) |
| Ref | Expression |
|---|---|
| cznrng.y | ⊢ 𝑌 = (ℤ/nℤ‘𝑁) |
| cznrng.b | ⊢ 𝐵 = (Base‘𝑌) |
| cznrng.x | ⊢ 𝑋 = (𝑌 sSet 〈(.r‘ndx), (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ 𝐶)〉) |
| Ref | Expression |
|---|---|
| cznabel | ⊢ ((𝑁 ∈ ℕ ∧ 𝐶 ∈ 𝐵) → 𝑋 ∈ Abel) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nnnn0 12408 | . . . 4 ⊢ (𝑁 ∈ ℕ → 𝑁 ∈ ℕ0) | |
| 2 | 1 | adantr 480 | . . 3 ⊢ ((𝑁 ∈ ℕ ∧ 𝐶 ∈ 𝐵) → 𝑁 ∈ ℕ0) |
| 3 | cznrng.y | . . . 4 ⊢ 𝑌 = (ℤ/nℤ‘𝑁) | |
| 4 | 3 | zncrng 21499 | . . 3 ⊢ (𝑁 ∈ ℕ0 → 𝑌 ∈ CRing) |
| 5 | crngring 20180 | . . 3 ⊢ (𝑌 ∈ CRing → 𝑌 ∈ Ring) | |
| 6 | ringabl 20216 | . . 3 ⊢ (𝑌 ∈ Ring → 𝑌 ∈ Abel) | |
| 7 | 2, 4, 5, 6 | 4syl 19 | . 2 ⊢ ((𝑁 ∈ ℕ ∧ 𝐶 ∈ 𝐵) → 𝑌 ∈ Abel) |
| 8 | cznrng.x | . . . . 5 ⊢ 𝑋 = (𝑌 sSet 〈(.r‘ndx), (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ 𝐶)〉) | |
| 9 | 8 | fveq2i 6837 | . . . 4 ⊢ (Base‘𝑋) = (Base‘(𝑌 sSet 〈(.r‘ndx), (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ 𝐶)〉)) |
| 10 | baseid 17139 | . . . . 5 ⊢ Base = Slot (Base‘ndx) | |
| 11 | basendxnmulrndx 17216 | . . . . 5 ⊢ (Base‘ndx) ≠ (.r‘ndx) | |
| 12 | 10, 11 | setsnid 17135 | . . . 4 ⊢ (Base‘𝑌) = (Base‘(𝑌 sSet 〈(.r‘ndx), (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ 𝐶)〉)) |
| 13 | 9, 12 | eqtr4i 2762 | . . 3 ⊢ (Base‘𝑋) = (Base‘𝑌) |
| 14 | 8 | fveq2i 6837 | . . . 4 ⊢ (+g‘𝑋) = (+g‘(𝑌 sSet 〈(.r‘ndx), (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ 𝐶)〉)) |
| 15 | plusgid 17204 | . . . . 5 ⊢ +g = Slot (+g‘ndx) | |
| 16 | plusgndxnmulrndx 17217 | . . . . 5 ⊢ (+g‘ndx) ≠ (.r‘ndx) | |
| 17 | 15, 16 | setsnid 17135 | . . . 4 ⊢ (+g‘𝑌) = (+g‘(𝑌 sSet 〈(.r‘ndx), (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ 𝐶)〉)) |
| 18 | 14, 17 | eqtr4i 2762 | . . 3 ⊢ (+g‘𝑋) = (+g‘𝑌) |
| 19 | 13, 18 | ablprop 19722 | . 2 ⊢ (𝑋 ∈ Abel ↔ 𝑌 ∈ Abel) |
| 20 | 7, 19 | sylibr 234 | 1 ⊢ ((𝑁 ∈ ℕ ∧ 𝐶 ∈ 𝐵) → 𝑋 ∈ Abel) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1541 ∈ wcel 2113 〈cop 4586 ‘cfv 6492 (class class class)co 7358 ∈ cmpo 7360 ℕcn 12145 ℕ0cn0 12401 sSet csts 17090 ndxcnx 17120 Basecbs 17136 +gcplusg 17177 .rcmulr 17178 Abelcabl 19710 Ringcrg 20168 CRingccrg 20169 ℤ/nℤczn 21457 |
| 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 ax-addf 11105 |
| 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-rmo 3350 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-int 4903 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-tpos 8168 df-frecs 8223 df-wrecs 8254 df-recs 8303 df-rdg 8341 df-1o 8397 df-er 8635 df-ec 8637 df-qs 8641 df-en 8884 df-dom 8885 df-sdom 8886 df-fin 8887 df-sup 9345 df-inf 9346 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-starv 17192 df-sca 17193 df-vsca 17194 df-ip 17195 df-tset 17196 df-ple 17197 df-ds 17199 df-unif 17200 df-0g 17361 df-imas 17429 df-qus 17430 df-mgm 18565 df-sgrp 18644 df-mnd 18660 df-grp 18866 df-minusg 18867 df-sbg 18868 df-subg 19053 df-nsg 19054 df-eqg 19055 df-cmn 19711 df-abl 19712 df-mgp 20076 df-rng 20088 df-ur 20117 df-ring 20170 df-cring 20171 df-oppr 20273 df-subrng 20479 df-subrg 20503 df-lmod 20813 df-lss 20883 df-lsp 20923 df-sra 21125 df-rgmod 21126 df-lidl 21163 df-rsp 21164 df-2idl 21205 df-cnfld 21310 df-zring 21402 df-zn 21461 |
| This theorem is referenced by: cznrng 48503 |
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