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| Mirrors > Home > MPE Home > Th. List > Mathboxes > 2zrngasgrp | Structured version Visualization version GIF version | ||
| Description: R is an (additive) semigroup. (Contributed by AV, 4-Feb-2020.) |
| Ref | Expression |
|---|---|
| 2zrng.e | ⊢ 𝐸 = {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)} |
| 2zrngbas.r | ⊢ 𝑅 = (ℂfld ↾s 𝐸) |
| Ref | Expression |
|---|---|
| 2zrngasgrp | ⊢ 𝑅 ∈ Smgrp |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2zrng.e | . . 3 ⊢ 𝐸 = {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)} | |
| 2 | 2zrngbas.r | . . 3 ⊢ 𝑅 = (ℂfld ↾s 𝐸) | |
| 3 | 1, 2 | 2zrngamgm 48233 | . 2 ⊢ 𝑅 ∈ Mgm |
| 4 | elrabi 3654 | . . . . 5 ⊢ (𝑎 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)} → 𝑎 ∈ ℤ) | |
| 5 | elrabi 3654 | . . . . 5 ⊢ (𝑦 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)} → 𝑦 ∈ ℤ) | |
| 6 | elrabi 3654 | . . . . 5 ⊢ (𝑏 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)} → 𝑏 ∈ ℤ) | |
| 7 | 4, 5, 6 | 3anim123i 1151 | . . . 4 ⊢ ((𝑎 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)} ∧ 𝑦 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)} ∧ 𝑏 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)}) → (𝑎 ∈ ℤ ∧ 𝑦 ∈ ℤ ∧ 𝑏 ∈ ℤ)) |
| 8 | zcn 12534 | . . . . 5 ⊢ (𝑎 ∈ ℤ → 𝑎 ∈ ℂ) | |
| 9 | zcn 12534 | . . . . 5 ⊢ (𝑦 ∈ ℤ → 𝑦 ∈ ℂ) | |
| 10 | zcn 12534 | . . . . 5 ⊢ (𝑏 ∈ ℤ → 𝑏 ∈ ℂ) | |
| 11 | 8, 9, 10 | 3anim123i 1151 | . . . 4 ⊢ ((𝑎 ∈ ℤ ∧ 𝑦 ∈ ℤ ∧ 𝑏 ∈ ℤ) → (𝑎 ∈ ℂ ∧ 𝑦 ∈ ℂ ∧ 𝑏 ∈ ℂ)) |
| 12 | addass 11155 | . . . 4 ⊢ ((𝑎 ∈ ℂ ∧ 𝑦 ∈ ℂ ∧ 𝑏 ∈ ℂ) → ((𝑎 + 𝑦) + 𝑏) = (𝑎 + (𝑦 + 𝑏))) | |
| 13 | 7, 11, 12 | 3syl 18 | . . 3 ⊢ ((𝑎 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)} ∧ 𝑦 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)} ∧ 𝑏 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)}) → ((𝑎 + 𝑦) + 𝑏) = (𝑎 + (𝑦 + 𝑏))) |
| 14 | 13 | rgen3 3182 | . 2 ⊢ ∀𝑎 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)}∀𝑦 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)}∀𝑏 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)} ((𝑎 + 𝑦) + 𝑏) = (𝑎 + (𝑦 + 𝑏)) |
| 15 | 1, 2 | 2zrngbas 48230 | . . . 4 ⊢ 𝐸 = (Base‘𝑅) |
| 16 | 1, 15 | eqtr3i 2754 | . . 3 ⊢ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)} = (Base‘𝑅) |
| 17 | 1, 2 | 2zrngadd 48231 | . . 3 ⊢ + = (+g‘𝑅) |
| 18 | 16, 17 | issgrp 18647 | . 2 ⊢ (𝑅 ∈ Smgrp ↔ (𝑅 ∈ Mgm ∧ ∀𝑎 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)}∀𝑦 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)}∀𝑏 ∈ {𝑧 ∈ ℤ ∣ ∃𝑥 ∈ ℤ 𝑧 = (2 · 𝑥)} ((𝑎 + 𝑦) + 𝑏) = (𝑎 + (𝑦 + 𝑏)))) |
| 19 | 3, 14, 18 | mpbir2an 711 | 1 ⊢ 𝑅 ∈ Smgrp |
| Colors of variables: wff setvar class |
| Syntax hints: ∧ w3a 1086 = wceq 1540 ∈ wcel 2109 ∀wral 3044 ∃wrex 3053 {crab 3405 ‘cfv 6511 (class class class)co 7387 ℂcc 11066 + caddc 11071 · cmul 11073 2c2 12241 ℤcz 12529 Basecbs 17179 ↾s cress 17200 Mgmcmgm 18565 Smgrpcsgrp 18645 ℂfldccnfld 21264 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5251 ax-nul 5261 ax-pow 5320 ax-pr 5387 ax-un 7711 ax-cnex 11124 ax-resscn 11125 ax-1cn 11126 ax-icn 11127 ax-addcl 11128 ax-addrcl 11129 ax-mulcl 11130 ax-mulrcl 11131 ax-mulcom 11132 ax-addass 11133 ax-mulass 11134 ax-distr 11135 ax-i2m1 11136 ax-1ne0 11137 ax-1rid 11138 ax-rnegex 11139 ax-rrecex 11140 ax-cnre 11141 ax-pre-lttri 11142 ax-pre-lttrn 11143 ax-pre-ltadd 11144 ax-pre-mulgt0 11145 ax-addf 11147 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-reu 3355 df-rab 3406 df-v 3449 df-sbc 3754 df-csb 3863 df-dif 3917 df-un 3919 df-in 3921 df-ss 3931 df-pss 3934 df-nul 4297 df-if 4489 df-pw 4565 df-sn 4590 df-pr 4592 df-tp 4594 df-op 4596 df-uni 4872 df-iun 4957 df-br 5108 df-opab 5170 df-mpt 5189 df-tr 5215 df-id 5533 df-eprel 5538 df-po 5546 df-so 5547 df-fr 5591 df-we 5593 df-xp 5644 df-rel 5645 df-cnv 5646 df-co 5647 df-dm 5648 df-rn 5649 df-res 5650 df-ima 5651 df-pred 6274 df-ord 6335 df-on 6336 df-lim 6337 df-suc 6338 df-iota 6464 df-fun 6513 df-fn 6514 df-f 6515 df-f1 6516 df-fo 6517 df-f1o 6518 df-fv 6519 df-riota 7344 df-ov 7390 df-oprab 7391 df-mpo 7392 df-om 7843 df-1st 7968 df-2nd 7969 df-frecs 8260 df-wrecs 8291 df-recs 8340 df-rdg 8378 df-1o 8434 df-er 8671 df-en 8919 df-dom 8920 df-sdom 8921 df-fin 8922 df-pnf 11210 df-mnf 11211 df-xr 11212 df-ltxr 11213 df-le 11214 df-sub 11407 df-neg 11408 df-nn 12187 df-2 12249 df-3 12250 df-4 12251 df-5 12252 df-6 12253 df-7 12254 df-8 12255 df-9 12256 df-n0 12443 df-z 12530 df-dec 12650 df-uz 12794 df-fz 13469 df-struct 17117 df-sets 17134 df-slot 17152 df-ndx 17164 df-base 17180 df-ress 17201 df-plusg 17233 df-mulr 17234 df-starv 17235 df-tset 17239 df-ple 17240 df-ds 17242 df-unif 17243 df-mgm 18567 df-sgrp 18646 df-cnfld 21265 |
| This theorem is referenced by: 2zrngamnd 48235 |
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