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Mirrors > Home > MPE Home > Th. List > Mathboxes > sn-addid2 | Structured version Visualization version GIF version |
Description: addid2 11208 without ax-mulcom 10985. (Contributed by SN, 23-Jan-2024.) |
Ref | Expression |
---|---|
sn-addid2 | ⊢ (𝐴 ∈ ℂ → (0 + 𝐴) = 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnre 11022 | . 2 ⊢ (𝐴 ∈ ℂ → ∃𝑥 ∈ ℝ ∃𝑦 ∈ ℝ 𝐴 = (𝑥 + (i · 𝑦))) | |
2 | 0cnd 11018 | . . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → 0 ∈ ℂ) | |
3 | simp2l 1199 | . . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → 𝑥 ∈ ℝ) | |
4 | 3 | recnd 11053 | . . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → 𝑥 ∈ ℂ) |
5 | ax-icn 10980 | . . . . . . . . 9 ⊢ i ∈ ℂ | |
6 | 5 | a1i 11 | . . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → i ∈ ℂ) |
7 | simp2r 1200 | . . . . . . . . 9 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → 𝑦 ∈ ℝ) | |
8 | 7 | recnd 11053 | . . . . . . . 8 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → 𝑦 ∈ ℂ) |
9 | 6, 8 | mulcld 11045 | . . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → (i · 𝑦) ∈ ℂ) |
10 | 2, 4, 9 | addassd 11047 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → ((0 + 𝑥) + (i · 𝑦)) = (0 + (𝑥 + (i · 𝑦)))) |
11 | readdid2 40581 | . . . . . . . . 9 ⊢ (𝑥 ∈ ℝ → (0 + 𝑥) = 𝑥) | |
12 | 11 | adantr 482 | . . . . . . . 8 ⊢ ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (0 + 𝑥) = 𝑥) |
13 | 12 | 3ad2ant2 1134 | . . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → (0 + 𝑥) = 𝑥) |
14 | 13 | oveq1d 7322 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → ((0 + 𝑥) + (i · 𝑦)) = (𝑥 + (i · 𝑦))) |
15 | 10, 14 | eqtr3d 2778 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → (0 + (𝑥 + (i · 𝑦))) = (𝑥 + (i · 𝑦))) |
16 | simp3 1138 | . . . . . 6 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → 𝐴 = (𝑥 + (i · 𝑦))) | |
17 | 16 | oveq2d 7323 | . . . . 5 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → (0 + 𝐴) = (0 + (𝑥 + (i · 𝑦)))) |
18 | 15, 17, 16 | 3eqtr4d 2786 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ (𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) ∧ 𝐴 = (𝑥 + (i · 𝑦))) → (0 + 𝐴) = 𝐴) |
19 | 18 | 3exp 1119 | . . 3 ⊢ (𝐴 ∈ ℂ → ((𝑥 ∈ ℝ ∧ 𝑦 ∈ ℝ) → (𝐴 = (𝑥 + (i · 𝑦)) → (0 + 𝐴) = 𝐴))) |
20 | 19 | rexlimdvv 3201 | . 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 397 ∧ w3a 1087 = wceq 1539 ∈ wcel 2104 ∃wrex 3071 (class class class)co 7307 ℂcc 10919 ℝcr 10920 0cc0 10921 ici 10923 + caddc 10924 · cmul 10926 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1911 ax-6 1969 ax-7 2009 ax-8 2106 ax-9 2114 ax-10 2135 ax-11 2152 ax-12 2169 ax-ext 2707 ax-sep 5232 ax-nul 5239 ax-pow 5297 ax-pr 5361 ax-un 7620 ax-resscn 10978 ax-1cn 10979 ax-icn 10980 ax-addcl 10981 ax-addrcl 10982 ax-mulcl 10983 ax-mulrcl 10984 ax-addass 10986 ax-mulass 10987 ax-distr 10988 ax-i2m1 10989 ax-1ne0 10990 ax-1rid 10991 ax-rnegex 10992 ax-rrecex 10993 ax-cnre 10994 ax-pre-lttri 10995 ax-pre-lttrn 10996 ax-pre-ltadd 10997 |
This theorem depends on definitions: df-bi 206 df-an 398 df-or 846 df-3or 1088 df-3an 1089 df-tru 1542 df-fal 1552 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2538 df-eu 2567 df-clab 2714 df-cleq 2728 df-clel 2814 df-nfc 2887 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rmo 3304 df-reu 3305 df-rab 3306 df-v 3439 df-sbc 3722 df-csb 3838 df-dif 3895 df-un 3897 df-in 3899 df-ss 3909 df-nul 4263 df-if 4466 df-pw 4541 df-sn 4566 df-pr 4568 df-op 4572 df-uni 4845 df-br 5082 df-opab 5144 df-mpt 5165 df-id 5500 df-po 5514 df-so 5515 df-xp 5606 df-rel 5607 df-cnv 5608 df-co 5609 df-dm 5610 df-rn 5611 df-res 5612 df-ima 5613 df-iota 6410 df-fun 6460 df-fn 6461 df-f 6462 df-f1 6463 df-fo 6464 df-f1o 6465 df-fv 6466 df-riota 7264 df-ov 7310 df-oprab 7311 df-mpo 7312 df-er 8529 df-en 8765 df-dom 8766 df-sdom 8767 df-pnf 11061 df-mnf 11062 df-ltxr 11064 df-resub 40544 |
This theorem is referenced by: sn-it0e0 40592 sn-negex12 40593 sn-addcand 40596 sn-subeu 40603 sn-0tie0 40616 cnreeu 40633 |
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