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Mirrors > Home > MPE Home > Th. List > atandm3 | Structured version Visualization version GIF version |
Description: A compact form of atandm 25614. (Contributed by Mario Carneiro, 31-Mar-2015.) |
Ref | Expression |
---|---|
atandm3 | ⊢ (𝐴 ∈ dom arctan ↔ (𝐴 ∈ ℂ ∧ (𝐴↑2) ≠ -1)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3anass 1096 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ -i ∧ 𝐴 ≠ i) ↔ (𝐴 ∈ ℂ ∧ (𝐴 ≠ -i ∧ 𝐴 ≠ i))) | |
2 | atandm 25614 | . 2 ⊢ (𝐴 ∈ dom arctan ↔ (𝐴 ∈ ℂ ∧ 𝐴 ≠ -i ∧ 𝐴 ≠ i)) | |
3 | ax-icn 10674 | . . . . . . 7 ⊢ i ∈ ℂ | |
4 | sqeqor 13670 | . . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ i ∈ ℂ) → ((𝐴↑2) = (i↑2) ↔ (𝐴 = i ∨ 𝐴 = -i))) | |
5 | 3, 4 | mpan2 691 | . . . . . 6 ⊢ (𝐴 ∈ ℂ → ((𝐴↑2) = (i↑2) ↔ (𝐴 = i ∨ 𝐴 = -i))) |
6 | i2 13657 | . . . . . . 7 ⊢ (i↑2) = -1 | |
7 | 6 | eqeq2i 2751 | . . . . . 6 ⊢ ((𝐴↑2) = (i↑2) ↔ (𝐴↑2) = -1) |
8 | orcom 869 | . . . . . 6 ⊢ ((𝐴 = i ∨ 𝐴 = -i) ↔ (𝐴 = -i ∨ 𝐴 = i)) | |
9 | 5, 7, 8 | 3bitr3g 316 | . . . . 5 ⊢ (𝐴 ∈ ℂ → ((𝐴↑2) = -1 ↔ (𝐴 = -i ∨ 𝐴 = i))) |
10 | 9 | necon3abid 2970 | . . . 4 ⊢ (𝐴 ∈ ℂ → ((𝐴↑2) ≠ -1 ↔ ¬ (𝐴 = -i ∨ 𝐴 = i))) |
11 | neanior 3026 | . . . 4 ⊢ ((𝐴 ≠ -i ∧ 𝐴 ≠ i) ↔ ¬ (𝐴 = -i ∨ 𝐴 = i)) | |
12 | 10, 11 | bitr4di 292 | . . 3 ⊢ (𝐴 ∈ ℂ → ((𝐴↑2) ≠ -1 ↔ (𝐴 ≠ -i ∧ 𝐴 ≠ i))) |
13 | 12 | pm5.32i 578 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ (𝐴↑2) ≠ -1) ↔ (𝐴 ∈ ℂ ∧ (𝐴 ≠ -i ∧ 𝐴 ≠ i))) |
14 | 1, 2, 13 | 3bitr4i 306 | 1 ⊢ (𝐴 ∈ dom arctan ↔ (𝐴 ∈ ℂ ∧ (𝐴↑2) ≠ -1)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 ↔ wb 209 ∧ wa 399 ∨ wo 846 ∧ w3a 1088 = wceq 1542 ∈ wcel 2114 ≠ wne 2934 dom cdm 5525 (class class class)co 7170 ℂcc 10613 1c1 10616 ici 10617 -cneg 10949 2c2 11771 ↑cexp 13521 arctancatan 25602 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1975 ax-7 2020 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2162 ax-12 2179 ax-ext 2710 ax-sep 5167 ax-nul 5174 ax-pow 5232 ax-pr 5296 ax-un 7479 ax-cnex 10671 ax-resscn 10672 ax-1cn 10673 ax-icn 10674 ax-addcl 10675 ax-addrcl 10676 ax-mulcl 10677 ax-mulrcl 10678 ax-mulcom 10679 ax-addass 10680 ax-mulass 10681 ax-distr 10682 ax-i2m1 10683 ax-1ne0 10684 ax-1rid 10685 ax-rnegex 10686 ax-rrecex 10687 ax-cnre 10688 ax-pre-lttri 10689 ax-pre-lttrn 10690 ax-pre-ltadd 10691 ax-pre-mulgt0 10692 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 847 df-3or 1089 df-3an 1090 df-tru 1545 df-fal 1555 df-ex 1787 df-nf 1791 df-sb 2075 df-mo 2540 df-eu 2570 df-clab 2717 df-cleq 2730 df-clel 2811 df-nfc 2881 df-ne 2935 df-nel 3039 df-ral 3058 df-rex 3059 df-reu 3060 df-rab 3062 df-v 3400 df-sbc 3681 df-csb 3791 df-dif 3846 df-un 3848 df-in 3850 df-ss 3860 df-pss 3862 df-nul 4212 df-if 4415 df-pw 4490 df-sn 4517 df-pr 4519 df-tp 4521 df-op 4523 df-uni 4797 df-iun 4883 df-br 5031 df-opab 5093 df-mpt 5111 df-tr 5137 df-id 5429 df-eprel 5434 df-po 5442 df-so 5443 df-fr 5483 df-we 5485 df-xp 5531 df-rel 5532 df-cnv 5533 df-co 5534 df-dm 5535 df-rn 5536 df-res 5537 df-ima 5538 df-pred 6129 df-ord 6175 df-on 6176 df-lim 6177 df-suc 6178 df-iota 6297 df-fun 6341 df-fn 6342 df-f 6343 df-f1 6344 df-fo 6345 df-f1o 6346 df-fv 6347 df-riota 7127 df-ov 7173 df-oprab 7174 df-mpo 7175 df-om 7600 df-2nd 7715 df-wrecs 7976 df-recs 8037 df-rdg 8075 df-er 8320 df-en 8556 df-dom 8557 df-sdom 8558 df-pnf 10755 df-mnf 10756 df-xr 10757 df-ltxr 10758 df-le 10759 df-sub 10950 df-neg 10951 df-nn 11717 df-2 11779 df-n0 11977 df-z 12063 df-uz 12325 df-seq 13461 df-exp 13522 df-atan 25605 |
This theorem is referenced by: atandm4 25617 atanre 25623 atandmneg 25644 atandmcj 25647 atandmtan 25658 bndatandm 25667 |
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