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| Mirrors > Home > MPE Home > Th. List > div0d | Structured version Visualization version GIF version | ||
| Description: Division into zero is zero. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| div1d.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| reccld.2 | ⊢ (𝜑 → 𝐴 ≠ 0) |
| Ref | Expression |
|---|---|
| div0d | ⊢ (𝜑 → (0 / 𝐴) = 0) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | div1d.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | reccld.2 | . 2 ⊢ (𝜑 → 𝐴 ≠ 0) | |
| 3 | div0 11875 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ≠ 0) → (0 / 𝐴) = 0) | |
| 4 | 1, 2, 3 | syl2anc 593 | 1 ⊢ (𝜑 → (0 / 𝐴) = 0) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1559 ∈ wcel 2141 ≠ wne 2956 (class class class)co 7392 ℂcc 11068 0cc0 11070 / cdiv 11841 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5245 ax-nul 5255 ax-pow 5321 ax-pr 5389 ax-un 7714 ax-resscn 11127 ax-1cn 11128 ax-icn 11129 ax-addcl 11130 ax-addrcl 11131 ax-mulcl 11132 ax-mulrcl 11133 ax-mulcom 11134 ax-addass 11135 ax-mulass 11136 ax-distr 11137 ax-i2m1 11138 ax-1ne0 11139 ax-1rid 11140 ax-rnegex 11141 ax-rrecex 11142 ax-cnre 11143 ax-pre-lttri 11144 ax-pre-lttrn 11145 ax-pre-ltadd 11146 ax-pre-mulgt0 11147 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-br 5100 df-opab 5162 df-mpt 5181 df-id 5540 df-po 5553 df-so 5554 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-iota 6473 df-fun 6519 df-fn 6520 df-f 6521 df-f1 6522 df-fo 6523 df-f1o 6524 df-fv 6525 df-riota 7349 df-ov 7395 df-oprab 7396 df-mpo 7397 df-er 8673 df-en 8924 df-dom 8925 df-sdom 8926 df-pnf 11215 df-mnf 11216 df-xr 11217 df-ltxr 11218 df-le 11219 df-sub 11413 df-neg 11414 df-div 11842 |
| This theorem is referenced by: mul2lt0rlt0 13094 bcval5 14328 ef0lem 16091 phiprmpw 16794 pceulem 16864 pcqmul 16872 pcqcl 16875 pcaddlem 16907 pcadd 16908 prmreclem4 16938 nmoleub2lem2 25158 mbfi1fseqlem3 25759 itgz 25823 ibl0 25829 iblss2 25848 itgss 25854 dvconst 25959 dvcobr 25988 plyeq0lem 26250 elqaalem3 26362 aareccl 26367 logb1 26811 birthdaylem3 26995 basellem4 27125 logexprlim 27266 chpo1ubb 27522 rpvmasumlem 27528 constrrecl 34027 cos9thpiminplylem3 34042 cndprobnul 34695 cvmliftlem7 35605 cvmliftlem10 35608 cvmliftlem13 35610 faclim 36060 poimirlem29 38112 poimirlem31 38114 areacirclem4 38174 pellexlem6 43375 reglog1 43437 stoweidlem36 46574 fourierdlem30 46675 fourierdlem103 46747 fourierdlem104 46748 sqwvfoura 46766 sqwvfourb 46767 elaa2lem 46771 etransclem24 46796 |
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