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| Mirrors > Home > MPE Home > Th. List > mul01 | Structured version Visualization version GIF version | ||
| Description: Multiplication by 0. Theorem I.6 of [Apostol] p. 18. (Contributed by NM, 15-May-1999.) (Revised by Scott Fenton, 3-Jan-2013.) |
| Ref | Expression |
|---|---|
| mul01 | ⊢ (𝐴 ∈ ℂ → (𝐴 · 0) = 0) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0cn 11134 | . . 3 ⊢ 0 ∈ ℂ | |
| 2 | mulcom 11122 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 0 ∈ ℂ) → (𝐴 · 0) = (0 · 𝐴)) | |
| 3 | 1, 2 | mpan2 697 | . 2 ⊢ (𝐴 ∈ ℂ → (𝐴 · 0) = (0 · 𝐴)) |
| 4 | mul02 11322 | . 2 ⊢ (𝐴 ∈ ℂ → (0 · 𝐴) = 0) | |
| 5 | 3, 4 | eqtrd 2775 | 1 ⊢ (𝐴 ∈ ℂ → (𝐴 · 0) = 0) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1547 ∈ wcel 2119 (class class class)co 7363 ℂcc 11034 0cc0 11036 · cmul 11041 |
| 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 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-10 2152 ax-11 2168 ax-12 2189 ax-ext 2712 ax-sep 5225 ax-nul 5235 ax-pow 5301 ax-pr 5369 ax-un 7685 ax-resscn 11093 ax-1cn 11094 ax-icn 11095 ax-addcl 11096 ax-addrcl 11097 ax-mulcl 11098 ax-mulrcl 11099 ax-mulcom 11100 ax-addass 11101 ax-mulass 11102 ax-distr 11103 ax-i2m1 11104 ax-1ne0 11105 ax-1rid 11106 ax-rnegex 11107 ax-rrecex 11108 ax-cnre 11109 ax-pre-lttri 11110 ax-pre-lttrn 11111 ax-pre-ltadd 11112 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3or 1093 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-nf 1791 df-sb 2074 df-mo 2543 df-eu 2573 df-clab 2719 df-cleq 2732 df-clel 2815 df-nfc 2889 df-ne 2936 df-nel 3040 df-ral 3055 df-rex 3065 df-rab 3393 df-v 3434 df-sbc 3731 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4269 df-if 4462 df-pw 4538 df-sn 4563 df-pr 4565 df-op 4569 df-uni 4846 df-br 5080 df-opab 5142 df-mpt 5161 df-id 5520 df-po 5533 df-so 5534 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-f1 6497 df-fo 6498 df-f1o 6499 df-fv 6500 df-ov 7366 df-er 8640 df-en 8891 df-dom 8892 df-sdom 8893 df-pnf 11179 df-mnf 11180 df-ltxr 11182 |
| This theorem is referenced by: addrid 11324 cnegex 11325 mul01i 11334 mul01d 11343 bernneq 14189 bcval5 14278 geo2lim 15838 efexp 16066 plymul0or 26272 fta1lem 26298 1cxp 26661 cxpmul2 26678 efrlim 26958 lgsne0 27323 vcz 30671 blocnilem 30900 hvmul0 31120 ocsh 31379 0lnfn 32081 nlelshi 32156 0even 48735 2zrngamgm 48743 |
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