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| Mirrors > Home > MPE Home > Th. List > addcanad | Structured version Visualization version GIF version | ||
| Description: Cancelling a term on the left-hand side of a sum in an equality. Consequence of addcand 11325. (Contributed by David Moews, 28-Feb-2017.) |
| Ref | Expression |
|---|---|
| muld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| addcomd.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| addcand.3 | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
| addcanad.4 | ⊢ (𝜑 → (𝐴 + 𝐵) = (𝐴 + 𝐶)) |
| Ref | Expression |
|---|---|
| addcanad | ⊢ (𝜑 → 𝐵 = 𝐶) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | addcanad.4 | . 2 ⊢ (𝜑 → (𝐴 + 𝐵) = (𝐴 + 𝐶)) | |
| 2 | muld.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 3 | addcomd.2 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
| 4 | addcand.3 | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℂ) | |
| 5 | 2, 3, 4 | addcand 11325 | . 2 ⊢ (𝜑 → ((𝐴 + 𝐵) = (𝐴 + 𝐶) ↔ 𝐵 = 𝐶)) |
| 6 | 1, 5 | mpbid 232 | 1 ⊢ (𝜑 → 𝐵 = 𝐶) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1541 ∈ wcel 2113 (class class class)co 7354 ℂcc 11013 + caddc 11018 |
| 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 2182 ax-ext 2705 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7676 ax-resscn 11072 ax-1cn 11073 ax-icn 11074 ax-addcl 11075 ax-addrcl 11076 ax-mulcl 11077 ax-mulrcl 11078 ax-mulcom 11079 ax-addass 11080 ax-mulass 11081 ax-distr 11082 ax-i2m1 11083 ax-1ne0 11084 ax-1rid 11085 ax-rnegex 11086 ax-rrecex 11087 ax-cnre 11088 ax-pre-lttri 11089 ax-pre-lttrn 11090 ax-pre-ltadd 11091 |
| 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 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2882 df-ne 2930 df-nel 3034 df-ral 3049 df-rex 3058 df-rab 3397 df-v 3439 df-sbc 3738 df-csb 3847 df-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-nul 4283 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4861 df-br 5096 df-opab 5158 df-mpt 5177 df-id 5516 df-po 5529 df-so 5530 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-iota 6444 df-fun 6490 df-fn 6491 df-f 6492 df-f1 6493 df-fo 6494 df-f1o 6495 df-fv 6496 df-ov 7357 df-er 8630 df-en 8878 df-dom 8879 df-sdom 8880 df-pnf 11157 df-mnf 11158 df-ltxr 11160 |
| This theorem is referenced by: climcndslem1 15760 climcndslem2 15761 fta1glem1 26103 fta1lem 26245 vieta1lem1 26248 elmrsubrn 35587 dffltz 42755 |
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