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| Mirrors > Home > MPE Home > Th. List > ringo2times | Structured version Visualization version GIF version | ||
| Description: A ring element plus itself is two times the element. "Two" in an arbitrary unital ring is the sum of the unity element with itself. (Contributed by AV, 24-Aug-2021.) Variant of o2timesd 20180 for rings. (Revised by AV, 5-Feb-2025.) |
| Ref | Expression |
|---|---|
| ringo2times.b | ⊢ 𝐵 = (Base‘𝑅) |
| ringo2times.p | ⊢ + = (+g‘𝑅) |
| ringo2times.t | ⊢ · = (.r‘𝑅) |
| ringo2times.u | ⊢ 1 = (1r‘𝑅) |
| Ref | Expression |
|---|---|
| ringo2times | ⊢ ((𝑅 ∈ Ring ∧ 𝐴 ∈ 𝐵) → (𝐴 + 𝐴) = (( 1 + 1 ) · 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ringo2times.b | . . . . 5 ⊢ 𝐵 = (Base‘𝑅) | |
| 2 | ringo2times.p | . . . . 5 ⊢ + = (+g‘𝑅) | |
| 3 | ringo2times.t | . . . . 5 ⊢ · = (.r‘𝑅) | |
| 4 | 1, 2, 3 | ringdir 20232 | . . . 4 ⊢ ((𝑅 ∈ Ring ∧ (𝑥 ∈ 𝐵 ∧ 𝑦 ∈ 𝐵 ∧ 𝑧 ∈ 𝐵)) → ((𝑥 + 𝑦) · 𝑧) = ((𝑥 · 𝑧) + (𝑦 · 𝑧))) |
| 5 | 4 | ralrimivvva 3181 | . . 3 ⊢ (𝑅 ∈ Ring → ∀𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐵 ∀𝑧 ∈ 𝐵 ((𝑥 + 𝑦) · 𝑧) = ((𝑥 · 𝑧) + (𝑦 · 𝑧))) |
| 6 | 5 | adantr 480 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 𝐴 ∈ 𝐵) → ∀𝑥 ∈ 𝐵 ∀𝑦 ∈ 𝐵 ∀𝑧 ∈ 𝐵 ((𝑥 + 𝑦) · 𝑧) = ((𝑥 · 𝑧) + (𝑦 · 𝑧))) |
| 7 | ringo2times.u | . . . 4 ⊢ 1 = (1r‘𝑅) | |
| 8 | 1, 7 | ringidcl 20235 | . . 3 ⊢ (𝑅 ∈ Ring → 1 ∈ 𝐵) |
| 9 | 8 | adantr 480 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 𝐴 ∈ 𝐵) → 1 ∈ 𝐵) |
| 10 | 1, 3, 7 | ringlidm 20239 | . . . 4 ⊢ ((𝑅 ∈ Ring ∧ 𝑥 ∈ 𝐵) → ( 1 · 𝑥) = 𝑥) |
| 11 | 10 | ralrimiva 3127 | . . 3 ⊢ (𝑅 ∈ Ring → ∀𝑥 ∈ 𝐵 ( 1 · 𝑥) = 𝑥) |
| 12 | 11 | adantr 480 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 𝐴 ∈ 𝐵) → ∀𝑥 ∈ 𝐵 ( 1 · 𝑥) = 𝑥) |
| 13 | simpr 484 | . 2 ⊢ ((𝑅 ∈ Ring ∧ 𝐴 ∈ 𝐵) → 𝐴 ∈ 𝐵) | |
| 14 | 6, 9, 12, 13 | o2timesd 20180 | 1 ⊢ ((𝑅 ∈ Ring ∧ 𝐴 ∈ 𝐵) → (𝐴 + 𝐴) = (( 1 + 1 ) · 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∀wral 3049 ‘cfv 6487 (class class class)co 7356 Basecbs 17168 +gcplusg 17209 .rcmulr 17210 1rcur 20151 Ringcrg 20203 |
| 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 2184 ax-ext 2707 ax-sep 5220 ax-nul 5230 ax-pow 5296 ax-pr 5364 ax-un 7678 ax-cnex 11083 ax-resscn 11084 ax-1cn 11085 ax-icn 11086 ax-addcl 11087 ax-addrcl 11088 ax-mulcl 11089 ax-mulrcl 11090 ax-mulcom 11091 ax-addass 11092 ax-mulass 11093 ax-distr 11094 ax-i2m1 11095 ax-1ne0 11096 ax-1rid 11097 ax-rnegex 11098 ax-rrecex 11099 ax-cnre 11100 ax-pre-lttri 11101 ax-pre-lttrn 11102 ax-pre-ltadd 11103 ax-pre-mulgt0 11104 |
| 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 2538 df-eu 2568 df-clab 2714 df-cleq 2727 df-clel 2810 df-nfc 2884 df-ne 2931 df-nel 3035 df-ral 3050 df-rex 3060 df-rmo 3340 df-reu 3341 df-rab 3388 df-v 3429 df-sbc 3726 df-csb 3834 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4264 df-if 4457 df-pw 4533 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4841 df-iun 4925 df-br 5075 df-opab 5137 df-mpt 5156 df-tr 5182 df-id 5515 df-eprel 5520 df-po 5528 df-so 5529 df-fr 5573 df-we 5575 df-xp 5626 df-rel 5627 df-cnv 5628 df-co 5629 df-dm 5630 df-rn 5631 df-res 5632 df-ima 5633 df-pred 6254 df-ord 6315 df-on 6316 df-lim 6317 df-suc 6318 df-iota 6443 df-fun 6489 df-fn 6490 df-f 6491 df-f1 6492 df-fo 6493 df-f1o 6494 df-fv 6495 df-riota 7313 df-ov 7359 df-oprab 7360 df-mpo 7361 df-om 7807 df-2nd 7932 df-frecs 8220 df-wrecs 8251 df-recs 8300 df-rdg 8338 df-er 8632 df-en 8883 df-dom 8884 df-sdom 8885 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11368 df-neg 11369 df-nn 12164 df-2 12233 df-sets 17123 df-slot 17141 df-ndx 17153 df-base 17169 df-plusg 17222 df-0g 17393 df-mgm 18597 df-sgrp 18676 df-mnd 18692 df-mgp 20111 df-ur 20152 df-ring 20205 |
| This theorem is referenced by: ringadd2 20246 |
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