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Mirrors > Home > MPE Home > Th. List > atandm3 | Structured version Visualization version GIF version |
Description: A compact form of atandm 26026. (Contributed by Mario Carneiro, 31-Mar-2015.) |
Ref | Expression |
---|---|
atandm3 | ⊢ (𝐴 ∈ dom arctan ↔ (𝐴 ∈ ℂ ∧ (𝐴↑2) ≠ -1)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 3anass 1094 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ -i ∧ 𝐴 ≠ i) ↔ (𝐴 ∈ ℂ ∧ (𝐴 ≠ -i ∧ 𝐴 ≠ i))) | |
2 | atandm 26026 | . 2 ⊢ (𝐴 ∈ dom arctan ↔ (𝐴 ∈ ℂ ∧ 𝐴 ≠ -i ∧ 𝐴 ≠ i)) | |
3 | ax-icn 10930 | . . . . . . 7 ⊢ i ∈ ℂ | |
4 | sqeqor 13932 | . . . . . . 7 ⊢ ((𝐴 ∈ ℂ ∧ i ∈ ℂ) → ((𝐴↑2) = (i↑2) ↔ (𝐴 = i ∨ 𝐴 = -i))) | |
5 | 3, 4 | mpan2 688 | . . . . . 6 ⊢ (𝐴 ∈ ℂ → ((𝐴↑2) = (i↑2) ↔ (𝐴 = i ∨ 𝐴 = -i))) |
6 | i2 13919 | . . . . . . 7 ⊢ (i↑2) = -1 | |
7 | 6 | eqeq2i 2751 | . . . . . 6 ⊢ ((𝐴↑2) = (i↑2) ↔ (𝐴↑2) = -1) |
8 | orcom 867 | . . . . . 6 ⊢ ((𝐴 = i ∨ 𝐴 = -i) ↔ (𝐴 = -i ∨ 𝐴 = i)) | |
9 | 5, 7, 8 | 3bitr3g 313 | . . . . 5 ⊢ (𝐴 ∈ ℂ → ((𝐴↑2) = -1 ↔ (𝐴 = -i ∨ 𝐴 = i))) |
10 | 9 | necon3abid 2980 | . . . 4 ⊢ (𝐴 ∈ ℂ → ((𝐴↑2) ≠ -1 ↔ ¬ (𝐴 = -i ∨ 𝐴 = i))) |
11 | neanior 3037 | . . . 4 ⊢ ((𝐴 ≠ -i ∧ 𝐴 ≠ i) ↔ ¬ (𝐴 = -i ∨ 𝐴 = i)) | |
12 | 10, 11 | bitr4di 289 | . . 3 ⊢ (𝐴 ∈ ℂ → ((𝐴↑2) ≠ -1 ↔ (𝐴 ≠ -i ∧ 𝐴 ≠ i))) |
13 | 12 | pm5.32i 575 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ (𝐴↑2) ≠ -1) ↔ (𝐴 ∈ ℂ ∧ (𝐴 ≠ -i ∧ 𝐴 ≠ i))) |
14 | 1, 2, 13 | 3bitr4i 303 | 1 ⊢ (𝐴 ∈ dom arctan ↔ (𝐴 ∈ ℂ ∧ (𝐴↑2) ≠ -1)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 ↔ wb 205 ∧ wa 396 ∨ wo 844 ∧ w3a 1086 = wceq 1539 ∈ wcel 2106 ≠ wne 2943 dom cdm 5589 (class class class)co 7275 ℂcc 10869 1c1 10872 ici 10873 -cneg 11206 2c2 12028 ↑cexp 13782 arctancatan 26014 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-cnex 10927 ax-resscn 10928 ax-1cn 10929 ax-icn 10930 ax-addcl 10931 ax-addrcl 10932 ax-mulcl 10933 ax-mulrcl 10934 ax-mulcom 10935 ax-addass 10936 ax-mulass 10937 ax-distr 10938 ax-i2m1 10939 ax-1ne0 10940 ax-1rid 10941 ax-rnegex 10942 ax-rrecex 10943 ax-cnre 10944 ax-pre-lttri 10945 ax-pre-lttrn 10946 ax-pre-ltadd 10947 ax-pre-mulgt0 10948 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-nel 3050 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-riota 7232 df-ov 7278 df-oprab 7279 df-mpo 7280 df-om 7713 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-er 8498 df-en 8734 df-dom 8735 df-sdom 8736 df-pnf 11011 df-mnf 11012 df-xr 11013 df-ltxr 11014 df-le 11015 df-sub 11207 df-neg 11208 df-nn 11974 df-2 12036 df-n0 12234 df-z 12320 df-uz 12583 df-seq 13722 df-exp 13783 df-atan 26017 |
This theorem is referenced by: atandm4 26029 atanre 26035 atandmneg 26056 atandmcj 26059 atandmtan 26070 bndatandm 26079 |
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