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Mirrors > Home > MPE Home > Th. List > rpcndif0 | Structured version Visualization version GIF version |
Description: A positive real number is a complex number not being 0. (Contributed by AV, 29-May-2020.) |
Ref | Expression |
---|---|
rpcndif0 | ⊢ (𝐴 ∈ ℝ+ → 𝐴 ∈ (ℂ ∖ {0})) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rpcnne0 12441 | . 2 ⊢ (𝐴 ∈ ℝ+ → (𝐴 ∈ ℂ ∧ 𝐴 ≠ 0)) | |
2 | eldifsn 4678 | . 2 ⊢ (𝐴 ∈ (ℂ ∖ {0}) ↔ (𝐴 ∈ ℂ ∧ 𝐴 ≠ 0)) | |
3 | 1, 2 | sylibr 237 | 1 ⊢ (𝐴 ∈ ℝ+ → 𝐴 ∈ (ℂ ∖ {0})) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 400 ∈ wcel 2112 ≠ wne 2952 ∖ cdif 3856 {csn 4523 ℂcc 10566 0cc0 10568 ℝ+crp 12423 |
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 1912 ax-6 1971 ax-7 2016 ax-8 2114 ax-9 2122 ax-10 2143 ax-11 2159 ax-12 2176 ax-ext 2730 ax-sep 5170 ax-nul 5177 ax-pow 5235 ax-pr 5299 ax-un 7460 ax-resscn 10625 ax-1cn 10626 ax-addrcl 10629 ax-rnegex 10639 ax-cnre 10641 ax-pre-lttri 10642 ax-pre-lttrn 10643 |
This theorem depends on definitions: df-bi 210 df-an 401 df-or 846 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2071 df-mo 2558 df-eu 2589 df-clab 2737 df-cleq 2751 df-clel 2831 df-nfc 2902 df-ne 2953 df-nel 3057 df-ral 3076 df-rex 3077 df-rab 3080 df-v 3412 df-sbc 3698 df-csb 3807 df-dif 3862 df-un 3864 df-in 3866 df-ss 3876 df-nul 4227 df-if 4422 df-pw 4497 df-sn 4524 df-pr 4526 df-op 4530 df-uni 4800 df-br 5034 df-opab 5096 df-mpt 5114 df-id 5431 df-po 5444 df-so 5445 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-iota 6295 df-fun 6338 df-fn 6339 df-f 6340 df-f1 6341 df-fo 6342 df-f1o 6343 df-fv 6344 df-er 8300 df-en 8529 df-dom 8530 df-sdom 8531 df-pnf 10708 df-mnf 10709 df-ltxr 10711 df-rp 12424 |
This theorem is referenced by: reefgim 25137 relogbreexp 25453 relogbmul 25455 relogbdiv 25457 relogbcxpb 25465 relogbf 25469 logbgt0b 25471 amgmlemALT 45715 |
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