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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 12435 | . . . 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 21534 | . . 3 ⊢ (𝑁 ∈ ℕ0 → 𝑌 ∈ CRing) |
| 5 | crngring 20217 | . . 3 ⊢ (𝑌 ∈ CRing → 𝑌 ∈ Ring) | |
| 6 | ringabl 20253 | . . 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 17173 | . . . . 5 ⊢ Base = Slot (Base‘ndx) | |
| 11 | basendxnmulrndx 17250 | . . . . 5 ⊢ (Base‘ndx) ≠ (.r‘ndx) | |
| 12 | 10, 11 | setsnid 17169 | . . . 4 ⊢ (Base‘𝑌) = (Base‘(𝑌 sSet 〈(.r‘ndx), (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ 𝐶)〉)) |
| 13 | 9, 12 | eqtr4i 2763 | . . 3 ⊢ (Base‘𝑋) = (Base‘𝑌) |
| 14 | 8 | fveq2i 6837 | . . . 4 ⊢ (+g‘𝑋) = (+g‘(𝑌 sSet 〈(.r‘ndx), (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ 𝐶)〉)) |
| 15 | plusgid 17238 | . . . . 5 ⊢ +g = Slot (+g‘ndx) | |
| 16 | plusgndxnmulrndx 17251 | . . . . 5 ⊢ (+g‘ndx) ≠ (.r‘ndx) | |
| 17 | 15, 16 | setsnid 17169 | . . . 4 ⊢ (+g‘𝑌) = (+g‘(𝑌 sSet 〈(.r‘ndx), (𝑥 ∈ 𝐵, 𝑦 ∈ 𝐵 ↦ 𝐶)〉)) |
| 18 | 14, 17 | eqtr4i 2763 | . . 3 ⊢ (+g‘𝑋) = (+g‘𝑌) |
| 19 | 13, 18 | ablprop 19759 | . 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 1542 ∈ wcel 2114 〈cop 4574 ‘cfv 6492 (class class class)co 7360 ∈ cmpo 7362 ℕcn 12165 ℕ0cn0 12428 sSet csts 17124 ndxcnx 17154 Basecbs 17170 +gcplusg 17211 .rcmulr 17212 Abelcabl 19747 Ringcrg 20205 CRingccrg 20206 ℤ/nℤczn 21492 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5212 ax-sep 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 ax-cnex 11085 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-addrcl 11090 ax-mulcl 11091 ax-mulrcl 11092 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-i2m1 11097 ax-1ne0 11098 ax-1rid 11099 ax-rnegex 11100 ax-rrecex 11101 ax-cnre 11102 ax-pre-lttri 11103 ax-pre-lttrn 11104 ax-pre-ltadd 11105 ax-pre-mulgt0 11106 ax-addf 11108 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-rmo 3343 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-tp 4573 df-op 4575 df-uni 4852 df-int 4891 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 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 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-tpos 8169 df-frecs 8224 df-wrecs 8255 df-recs 8304 df-rdg 8342 df-1o 8398 df-er 8636 df-ec 8638 df-qs 8642 df-en 8887 df-dom 8888 df-sdom 8889 df-fin 8890 df-sup 9348 df-inf 9349 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-nn 12166 df-2 12235 df-3 12236 df-4 12237 df-5 12238 df-6 12239 df-7 12240 df-8 12241 df-9 12242 df-n0 12429 df-z 12516 df-dec 12636 df-uz 12780 df-fz 13453 df-struct 17108 df-sets 17125 df-slot 17143 df-ndx 17155 df-base 17171 df-ress 17192 df-plusg 17224 df-mulr 17225 df-starv 17226 df-sca 17227 df-vsca 17228 df-ip 17229 df-tset 17230 df-ple 17231 df-ds 17233 df-unif 17234 df-0g 17395 df-imas 17463 df-qus 17464 df-mgm 18599 df-sgrp 18678 df-mnd 18694 df-grp 18903 df-minusg 18904 df-sbg 18905 df-subg 19090 df-nsg 19091 df-eqg 19092 df-cmn 19748 df-abl 19749 df-mgp 20113 df-rng 20125 df-ur 20154 df-ring 20207 df-cring 20208 df-oppr 20308 df-subrng 20514 df-subrg 20538 df-lmod 20848 df-lss 20918 df-lsp 20958 df-sra 21160 df-rgmod 21161 df-lidl 21198 df-rsp 21199 df-2idl 21240 df-cnfld 21345 df-zring 21437 df-zn 21496 |
| This theorem is referenced by: cznrng 48749 |
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