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| Mirrors > Home > MPE Home > Th. List > Mathboxes > sn-addcan2d | Structured version Visualization version GIF version | ||
| Description: addcan2d 11424 without ax-mulcom 11174. (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 43211 | . . 3 ⊢ (𝐶 ∈ ℂ → ∃𝑥 ∈ ℂ (𝐶 + 𝑥) = 0) | |
| 3 | 1, 2 | syl 18 | . 2 ⊢ (𝜑 → ∃𝑥 ∈ ℂ (𝐶 + 𝑥) = 0) |
| 4 | oveq1 7423 | . . . 4 ⊢ ((𝐴 + 𝐶) = (𝐵 + 𝐶) → ((𝐴 + 𝐶) + 𝑥) = ((𝐵 + 𝐶) + 𝑥)) | |
| 5 | sn-addcan2d.a | . . . . . . . 8 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 6 | 5 | adantr 486 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → 𝐴 ∈ ℂ) |
| 7 | 1 | adantr 486 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → 𝐶 ∈ ℂ) |
| 8 | simprl 783 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → 𝑥 ∈ ℂ) | |
| 9 | 6, 7, 8 | addassd 11241 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → ((𝐴 + 𝐶) + 𝑥) = (𝐴 + (𝐶 + 𝑥))) |
| 10 | simprr 785 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → (𝐶 + 𝑥) = 0) | |
| 11 | 10 | oveq2d 7432 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → (𝐴 + (𝐶 + 𝑥)) = (𝐴 + 0)) |
| 12 | sn-addrid 43214 | . . . . . . 7 ⊢ (𝐴 ∈ ℂ → (𝐴 + 0) = 𝐴) | |
| 13 | 6, 12 | syl 18 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → (𝐴 + 0) = 𝐴) |
| 14 | 9, 11, 13 | 3eqtrd 2805 | . . . . 5 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → ((𝐴 + 𝐶) + 𝑥) = 𝐴) |
| 15 | sn-addcan2d.b | . . . . . . . 8 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
| 16 | 15 | adantr 486 | . . . . . . 7 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → 𝐵 ∈ ℂ) |
| 17 | 16, 7, 8 | addassd 11241 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → ((𝐵 + 𝐶) + 𝑥) = (𝐵 + (𝐶 + 𝑥))) |
| 18 | 10 | oveq2d 7432 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → (𝐵 + (𝐶 + 𝑥)) = (𝐵 + 0)) |
| 19 | sn-addrid 43214 | . . . . . . 7 ⊢ (𝐵 ∈ ℂ → (𝐵 + 0) = 𝐵) | |
| 20 | 16, 19 | syl 18 | . . . . . 6 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → (𝐵 + 0) = 𝐵) |
| 21 | 17, 18, 20 | 3eqtrd 2805 | . . . . 5 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → ((𝐵 + 𝐶) + 𝑥) = 𝐵) |
| 22 | 14, 21 | eqeq12d 2782 | . . . 4 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → (((𝐴 + 𝐶) + 𝑥) = ((𝐵 + 𝐶) + 𝑥) ↔ 𝐴 = 𝐵)) |
| 23 | 4, 22 | imbitrid 247 | . . 3 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → ((𝐴 + 𝐶) = (𝐵 + 𝐶) → 𝐴 = 𝐵)) |
| 24 | oveq1 7423 | . . 3 ⊢ (𝐴 = 𝐵 → (𝐴 + 𝐶) = (𝐵 + 𝐶)) | |
| 25 | 23, 24 | impbid1 228 | . 2 ⊢ ((𝜑 ∧ (𝑥 ∈ ℂ ∧ (𝐶 + 𝑥) = 0)) → ((𝐴 + 𝐶) = (𝐵 + 𝐶) ↔ 𝐴 = 𝐵)) |
| 26 | 3, 25 | rexlimddv 3175 | 1 ⊢ (𝜑 → ((𝐴 + 𝐶) = (𝐵 + 𝐶) ↔ 𝐴 = 𝐵)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1570 ∈ wcel 2146 ∃wrex 3092 (class class class)co 7416 ℂcc 11108 0cc0 11110 + caddc 11113 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2738 ax-sep 5260 ax-nul 5272 ax-pow 5339 ax-pr 5407 ax-un 7738 ax-resscn 11167 ax-1cn 11168 ax-icn 11169 ax-addcl 11170 ax-addrcl 11171 ax-mulcl 11172 ax-mulrcl 11173 ax-addass 11175 ax-mulass 11176 ax-distr 11177 ax-i2m1 11178 ax-1ne0 11179 ax-1rid 11180 ax-rnegex 11181 ax-rrecex 11182 ax-cnre 11183 ax-pre-lttri 11184 ax-pre-lttrn 11185 ax-pre-ltadd 11186 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2570 df-eu 2600 df-clab 2745 df-cleq 2758 df-clel 2841 df-nfc 2915 df-ne 2962 df-nel 3068 df-ral 3083 df-rex 3093 df-rmo 3372 df-reu 3373 df-rab 3420 df-v 3460 df-sbc 3748 df-csb 3857 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-nul 4290 df-if 4491 df-pw 4567 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4876 df-br 5113 df-opab 5177 df-mpt 5196 df-id 5559 df-po 5572 df-so 5573 df-xp 5670 df-rel 5671 df-cnv 5672 df-co 5673 df-dm 5674 df-rn 5675 df-res 5676 df-ima 5677 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7373 df-ov 7419 df-oprab 7420 df-mpo 7421 df-er 8696 df-en 8946 df-dom 8947 df-sdom 8948 df-pnf 11255 df-mnf 11256 df-ltxr 11258 df-2 12313 df-3 12314 df-resub 43159 |
| This theorem is used by: reixi 43216 |
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