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| Mirrors > Home > MPE Home > Th. List > Mathboxes > sn-addcan2d | Structured version Visualization version GIF version | ||
| Description: addcan2d 11349 without ax-mulcom 11102. (Contributed by SN, 5-May-2024.) |
| Ref | Expression |
|---|---|
| sn-addcan2d.a | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| sn-addcan2d.b | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| sn-addcan2d.c | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
| Ref | Expression |
|---|---|
| sn-addcan2d | ⊢ (𝜑 → ((𝐴 + 𝐶) = (𝐵 + 𝐶) ↔ 𝐴 = 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sn-addcan2d.c | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℂ) | |
| 2 | sn-negex 42782 | . . 3 ⊢ (𝐶 ∈ ℂ → ∃𝑥 ∈ ℂ (𝐶 + 𝑥) = 0) | |
| 3 | 1, 2 | syl 17 | . 2 ⊢ (𝜑 → ∃𝑥 ∈ ℂ (𝐶 + 𝑥) = 0) |
| 4 | oveq1 7375 | . . . 4 ⊢ ((𝐴 + 𝐶) = (𝐵 + 𝐶) → ((𝐴 + 𝐶) + 𝑥) = ((𝐵 + 𝐶) + 𝑥)) | |
| 5 | sn-addcan2d.a | . . . . . . . 8 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 6 | 5 | adantr 480 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → 𝐴 ∈ ℂ) |
| 7 | 1 | adantr 480 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → 𝐶 ∈ ℂ) |
| 8 | simprl 771 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → 𝑥 ∈ ℂ) | |
| 9 | 6, 7, 8 | addassd 11166 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → ((𝐴 + 𝐶) + 𝑥) = (𝐴 + (𝐶 + 𝑥))) |
| 10 | simprr 773 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → (𝐶 + 𝑥) = 0) | |
| 11 | 10 | oveq2d 7384 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → (𝐴 + (𝐶 + 𝑥)) = (𝐴 + 0)) |
| 12 | sn-addrid 42785 | . . . . . . 7 ⊢ (𝐴 ∈ ℂ → (𝐴 + 0) = 𝐴) | |
| 13 | 6, 12 | syl 17 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → (𝐴 + 0) = 𝐴) |
| 14 | 9, 11, 13 | 3eqtrd 2776 | . . . . 5 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → ((𝐴 + 𝐶) + 𝑥) = 𝐴) |
| 15 | sn-addcan2d.b | . . . . . . . 8 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
| 16 | 15 | adantr 480 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → 𝐵 ∈ ℂ) |
| 17 | 16, 7, 8 | addassd 11166 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → ((𝐵 + 𝐶) + 𝑥) = (𝐵 + (𝐶 + 𝑥))) |
| 18 | 10 | oveq2d 7384 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → (𝐵 + (𝐶 + 𝑥)) = (𝐵 + 0)) |
| 19 | sn-addrid 42785 | . . . . . . 7 ⊢ (𝐵 ∈ ℂ → (𝐵 + 0) = 𝐵) | |
| 20 | 16, 19 | syl 17 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → (𝐵 + 0) = 𝐵) |
| 21 | 17, 18, 20 | 3eqtrd 2776 | . . . . 5 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → ((𝐵 + 𝐶) + 𝑥) = 𝐵) |
| 22 | 14, 21 | eqeq12d 2753 | . . . 4 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → (((𝐴 + 𝐶) + 𝑥) = ((𝐵 + 𝐶) + 𝑥) ↔ 𝐴 = 𝐵)) |
| 23 | 4, 22 | imbitrid 244 | . . 3 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → ((𝐴 + 𝐶) = (𝐵 + 𝐶) → 𝐴 = 𝐵)) |
| 24 | oveq1 7375 | . . 3 ⊢ (𝐴 = 𝐵 → (𝐴 + 𝐶) = (𝐵 + 𝐶)) | |
| 25 | 23, 24 | impbid1 225 | . 2 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → ((𝐴 + 𝐶) = (𝐵 + 𝐶) ↔ 𝐴 = 𝐵)) |
| 26 | 3, 25 | rexlimddv 3145 | 1 ⊢ (𝜑 → ((𝐴 + 𝐶) = (𝐵 + 𝐶) ↔ 𝐴 = 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∃wrex 3062 (class class class)co 7368 ℂcc 11036 0cc0 11038 + caddc 11041 |
| 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-sep 5243 ax-nul 5253 ax-pow 5312 ax-pr 5379 ax-un 7690 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 |
| 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 3352 df-reu 3353 df-rab 3402 df-v 3444 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-nul 4288 df-if 4482 df-pw 4558 df-sn 4583 df-pr 4585 df-op 4589 df-uni 4866 df-br 5101 df-opab 5163 df-mpt 5182 df-id 5527 df-po 5540 df-so 5541 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-riota 7325 df-ov 7371 df-oprab 7372 df-mpo 7373 df-er 8645 df-en 8896 df-dom 8897 df-sdom 8898 df-pnf 11180 df-mnf 11181 df-ltxr 11183 df-2 12220 df-3 12221 df-resub 42730 |
| This theorem is referenced by: reixi 42787 |
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