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Mirrors > Home > MPE Home > Th. List > Mathboxes > sn-addid2 | Structured version Visualization version GIF version |
Description: addid2 11015 without ax-mulcom 10793. (Contributed by SN, 23-Jan-2024.) |
Ref | Expression |
---|---|
sn-addid2 | ⊢ (𝐴 ∈ ℂ → (0 + 𝐴) = 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnre 10830 | . 2 ⊢ (𝐴 ∈ ℂ → ∃𝑥 ∈ ℝ ∃𝑦 ∈ ℝ 𝐴 = (𝑥 + (i · 𝑦))) | |
2 | 0cnd 10826 | . . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → 0 ∈ ℂ) | |
3 | simp2l 1201 | . . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → 𝑥 ∈ ℝ) | |
4 | 3 | recnd 10861 | . . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → 𝑥 ∈ ℂ) |
5 | ax-icn 10788 | . . . . . . . . 9 ⊢ i ∈ ℂ | |
6 | 5 | a1i 11 | . . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → i ∈ ℂ) |
7 | simp2r 1202 | . . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → 𝑦 ∈ ℝ) | |
8 | 7 | recnd 10861 | . . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → 𝑦 ∈ ℂ) |
9 | 6, 8 | mulcld 10853 | . . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → (i · 𝑦) ∈ ℂ) |
10 | 2, 4, 9 | addassd 10855 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → ((0 + 𝑥) + (i · 𝑦)) = (0 + (𝑥 + (i · 𝑦)))) |
11 | readdid2 40094 | . . . . . . . . 9 ⊢ (𝑥 ∈ ℝ → (0 + 𝑥) = 𝑥) | |
12 | 11 | adantr 484 | . . . . . . . 8 ⊢ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (0 + 𝑥) = 𝑥) |
13 | 12 | 3ad2ant2 1136 | . . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → (0 + 𝑥) = 𝑥) |
14 | 13 | oveq1d 7228 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → ((0 + 𝑥) + (i · 𝑦)) = (𝑥 + (i · 𝑦))) |
15 | 10, 14 | eqtr3d 2779 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → (0 + (𝑥 + (i · 𝑦))) = (𝑥 + (i · 𝑦))) |
16 | simp3 1140 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → 𝐴 = (𝑥 + (i · 𝑦))) | |
17 | 16 | oveq2d 7229 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → (0 + 𝐴) = (0 + (𝑥 + (i · 𝑦)))) |
18 | 15, 17, 16 | 3eqtr4d 2787 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → (0 + 𝐴) = 𝐴) |
19 | 18 | 3exp 1121 | . . 3 ⊢ (𝐴 ∈ ℂ → ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (𝐴 = (𝑥 + (i · 𝑦)) → (0 + 𝐴) = 𝐴))) |
20 | 19 | rexlimdvv 3212 | . 2 ⊢ (𝐴 ∈ ℂ → (∃𝑥 ∈ ℝ ∃𝑦 ∈ ℝ 𝐴 = (𝑥 + (i · 𝑦)) → (0 + 𝐴) = 𝐴)) |
21 | 1, 20 | mpd 15 | 1 ⊢ (𝐴 ∈ ℂ → (0 + 𝐴) = 𝐴) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 399 ∧ w3a 1089 = wceq 1543 ∈ wcel 2110 ∃wrex 3062 (class class class)co 7213 ℂcc 10727 ℝcr 10728 0cc0 10729 ici 10731 + caddc 10732 · cmul 10734 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1976 ax-7 2016 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2158 ax-12 2175 ax-ext 2708 ax-sep 5192 ax-nul 5199 ax-pow 5258 ax-pr 5322 ax-un 7523 ax-resscn 10786 ax-1cn 10787 ax-icn 10788 ax-addcl 10789 ax-addrcl 10790 ax-mulcl 10791 ax-mulrcl 10792 ax-addass 10794 ax-mulass 10795 ax-distr 10796 ax-i2m1 10797 ax-1ne0 10798 ax-1rid 10799 ax-rnegex 10800 ax-rrecex 10801 ax-cnre 10802 ax-pre-lttri 10803 ax-pre-lttrn 10804 ax-pre-ltadd 10805 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 848 df-3or 1090 df-3an 1091 df-tru 1546 df-fal 1556 df-ex 1788 df-nf 1792 df-sb 2071 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2816 df-nfc 2886 df-ne 2941 df-nel 3047 df-ral 3066 df-rex 3067 df-reu 3068 df-rmo 3069 df-rab 3070 df-v 3410 df-sbc 3695 df-csb 3812 df-dif 3869 df-un 3871 df-in 3873 df-ss 3883 df-nul 4238 df-if 4440 df-pw 4515 df-sn 4542 df-pr 4544 df-op 4548 df-uni 4820 df-br 5054 df-opab 5116 df-mpt 5136 df-id 5455 df-po 5468 df-so 5469 df-xp 5557 df-rel 5558 df-cnv 5559 df-co 5560 df-dm 5561 df-rn 5562 df-res 5563 df-ima 5564 df-iota 6338 df-fun 6382 df-fn 6383 df-f 6384 df-f1 6385 df-fo 6386 df-f1o 6387 df-fv 6388 df-riota 7170 df-ov 7216 df-oprab 7217 df-mpo 7218 df-er 8391 df-en 8627 df-dom 8628 df-sdom 8629 df-pnf 10869 df-mnf 10870 df-ltxr 10872 df-resub 40057 |
This theorem is referenced by: sn-it0e0 40105 sn-negex12 40106 sn-addcand 40109 sn-subeu 40116 sn-0tie0 40129 cnreeu 40146 |
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