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Mirrors > Home > MPE Home > Th. List > zrhval | Structured version Visualization version GIF version |
Description: Define the unique homomorphism from the integers to a ring or field. (Contributed by Mario Carneiro, 13-Jun-2015.) (Revised by AV, 12-Jun-2019.) |
Ref | Expression |
---|---|
zrhval.l | ⊢ 𝐿 = (ℤRHom‘𝑅) |
Ref | Expression |
---|---|
zrhval | ⊢ 𝐿 = ∪ (ℤring RingHom 𝑅) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | zrhval.l | . 2 ⊢ 𝐿 = (ℤRHom‘𝑅) | |
2 | oveq2 7263 | . . . . 5 ⊢ (𝑟 = 𝑅 → (ℤring RingHom 𝑟) = (ℤring RingHom 𝑅)) | |
3 | 2 | unieqd 4850 | . . . 4 ⊢ (𝑟 = 𝑅 → ∪ (ℤring RingHom 𝑟) = ∪ (ℤring RingHom 𝑅)) |
4 | df-zrh 20617 | . . . 4 ⊢ ℤRHom = (𝑟 ∈ V ↦ ∪ (ℤring RingHom 𝑟)) | |
5 | ovex 7288 | . . . . 5 ⊢ (ℤring RingHom 𝑅) ∈ V | |
6 | 5 | uniex 7572 | . . . 4 ⊢ ∪ (ℤring RingHom 𝑅) ∈ V |
7 | 3, 4, 6 | fvmpt 6857 | . . 3 ⊢ (𝑅 ∈ V → (ℤRHom‘𝑅) = ∪ (ℤring RingHom 𝑅)) |
8 | fvprc 6748 | . . . 4 ⊢ (¬ 𝑅 ∈ V → (ℤRHom‘𝑅) = ∅) | |
9 | dfrhm2 19876 | . . . . . . . 8 ⊢ RingHom = (𝑟 ∈ Ring, 𝑠 ∈ Ring ↦ ((𝑟 GrpHom 𝑠) ∩ ((mulGrp‘𝑟) MndHom (mulGrp‘𝑠)))) | |
10 | 9 | reldmmpo 7386 | . . . . . . 7 ⊢ Rel dom RingHom |
11 | 10 | ovprc2 7295 | . . . . . 6 ⊢ (¬ 𝑅 ∈ V → (ℤring RingHom 𝑅) = ∅) |
12 | 11 | unieqd 4850 | . . . . 5 ⊢ (¬ 𝑅 ∈ V → ∪ (ℤring RingHom 𝑅) = ∪ ∅) |
13 | uni0 4866 | . . . . 5 ⊢ ∪ ∅ = ∅ | |
14 | 12, 13 | eqtrdi 2795 | . . . 4 ⊢ (¬ 𝑅 ∈ V → ∪ (ℤring RingHom 𝑅) = ∅) |
15 | 8, 14 | eqtr4d 2781 | . . 3 ⊢ (¬ 𝑅 ∈ V → (ℤRHom‘𝑅) = ∪ (ℤring RingHom 𝑅)) |
16 | 7, 15 | pm2.61i 182 | . 2 ⊢ (ℤRHom‘𝑅) = ∪ (ℤring RingHom 𝑅) |
17 | 1, 16 | eqtri 2766 | 1 ⊢ 𝐿 = ∪ (ℤring RingHom 𝑅) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 = wceq 1539 ∈ wcel 2108 Vcvv 3422 ∩ cin 3882 ∅c0 4253 ∪ cuni 4836 ‘cfv 6418 (class class class)co 7255 MndHom cmhm 18343 GrpHom cghm 18746 mulGrpcmgp 19635 Ringcrg 19698 RingHom crh 19871 ℤringzring 20582 ℤRHomczrh 20613 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-om 7688 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-er 8456 df-map 8575 df-en 8692 df-dom 8693 df-sdom 8694 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-nn 11904 df-2 11966 df-sets 16793 df-slot 16811 df-ndx 16823 df-base 16841 df-plusg 16901 df-0g 17069 df-mhm 18345 df-ghm 18747 df-mgp 19636 df-ur 19653 df-ring 19700 df-rnghom 19874 df-zrh 20617 |
This theorem is referenced by: zrhval2 20622 zrhpropd 20628 |
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