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Mirrors > Home > MPE Home > Th. List > ine0 | Structured version Visualization version GIF version |
Description: The imaginary unit i is not zero. (Contributed by NM, 6-May-1999.) |
Ref | Expression |
---|---|
ine0 | ⊢ i ≠ 0 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-1ne0 11078 | . . . 4 ⊢ 1 ≠ 0 | |
2 | 1 | neii 2943 | . . 3 ⊢ ¬ 1 = 0 |
3 | oveq2 7359 | . . . . . 6 ⊢ (i = 0 → (i · i) = (i · 0)) | |
4 | ax-icn 11068 | . . . . . . 7 ⊢ i ∈ ℂ | |
5 | 4 | mul01i 11303 | . . . . . 6 ⊢ (i · 0) = 0 |
6 | 3, 5 | eqtr2di 2794 | . . . . 5 ⊢ (i = 0 → 0 = (i · i)) |
7 | 6 | oveq1d 7366 | . . . 4 ⊢ (i = 0 → (0 + 1) = ((i · i) + 1)) |
8 | ax-1cn 11067 | . . . . 5 ⊢ 1 ∈ ℂ | |
9 | 8 | addid2i 11301 | . . . 4 ⊢ (0 + 1) = 1 |
10 | ax-i2m1 11077 | . . . 4 ⊢ ((i · i) + 1) = 0 | |
11 | 7, 9, 10 | 3eqtr3g 2800 | . . 3 ⊢ (i = 0 → 1 = 0) |
12 | 2, 11 | mto 196 | . 2 ⊢ ¬ i = 0 |
13 | 12 | neir 2944 | 1 ⊢ i ≠ 0 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1541 ≠ wne 2941 (class class class)co 7351 0cc0 11009 1c1 11010 ici 11011 + caddc 11012 · cmul 11014 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 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 2708 ax-sep 5254 ax-nul 5261 ax-pow 5318 ax-pr 5382 ax-un 7664 ax-resscn 11066 ax-1cn 11067 ax-icn 11068 ax-addcl 11069 ax-addrcl 11070 ax-mulcl 11071 ax-mulrcl 11072 ax-mulcom 11073 ax-addass 11074 ax-mulass 11075 ax-distr 11076 ax-i2m1 11077 ax-1ne0 11078 ax-1rid 11079 ax-rnegex 11080 ax-rrecex 11081 ax-cnre 11082 ax-pre-lttri 11083 ax-pre-lttrn 11084 ax-pre-ltadd 11085 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2539 df-eu 2568 df-clab 2715 df-cleq 2729 df-clel 2815 df-nfc 2887 df-ne 2942 df-nel 3048 df-ral 3063 df-rex 3072 df-rab 3406 df-v 3445 df-sbc 3738 df-csb 3854 df-dif 3911 df-un 3913 df-in 3915 df-ss 3925 df-nul 4281 df-if 4485 df-pw 4560 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4864 df-br 5104 df-opab 5166 df-mpt 5187 df-id 5529 df-po 5543 df-so 5544 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-iota 6445 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-ov 7354 df-er 8606 df-en 8842 df-dom 8843 df-sdom 8844 df-pnf 11149 df-mnf 11150 df-ltxr 11152 |
This theorem is referenced by: inelr 12101 2muline0 12335 irec 14059 iexpcyc 14065 imre 14953 reim 14954 crim 14960 cjreb 14968 cnpart 15085 tanval2 15975 tanval3 15976 efival 15994 sinhval 15996 retanhcl 16001 tanhlt1 16002 tanhbnd 16003 itgz 25097 ibl0 25103 iblcnlem1 25104 itgcnlem 25106 iblss 25121 iblss2 25122 itgss 25128 itgeqa 25130 iblconst 25134 iblabsr 25146 iblmulc2 25147 itgsplit 25152 dvsincos 25297 efeq1 25836 tanregt0 25847 efif1olem4 25853 eflogeq 25909 cxpsqrtlem 26009 root1eq1 26060 ang180lem1 26111 ang180lem2 26112 ang180lem3 26113 atandm2 26179 2efiatan 26220 atantan 26225 dvatan 26237 atantayl2 26240 log2cnv 26246 ccfldextdgrr 32176 itgexpif 33031 logi 34123 iexpire 34124 iblmulc2nc 36081 ftc1anclem6 36094 proot1ex 41437 iblsplit 44108 sinh-conventional 47085 |
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