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| Mirrors > Home > ILE Home > Th. List > divcanap2d | GIF version | ||
| Description: A cancellation law for division. (Contributed by Jim Kingdon, 29-Feb-2020.) |
| Ref | Expression |
|---|---|
| divcld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| divcld.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| divclapd.3 | ⊢ (𝜑 → 𝐵 # 0) |
| Ref | Expression |
|---|---|
| divcanap2d | ⊢ (𝜑 → (𝐵 · (𝐴 / 𝐵)) = 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | divcld.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
| 2 | divcld.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
| 3 | divclapd.3 | . 2 ⊢ (𝜑 → 𝐵 # 0) | |
| 4 | divcanap2 9012 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐵 # 0) → (𝐵 · (𝐴 / 𝐵)) = 𝐴) | |
| 5 | 1, 2, 3, 4 | syl3anc 1278 | 1 ⊢ (𝜑 → (𝐵 · (𝐴 / 𝐵)) = 𝐴) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 = wceq 1402 ∈ wcel 2209 class class class wbr 4130 (class class class)co 6085 ℂcc 8177 0cc0 8179 · cmul 8184 # cap 8911 / cdiv 9004 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4249 ax-pow 4311 ax-pr 4346 ax-un 4578 ax-setind 4684 ax-cnex 8270 ax-resscn 8271 ax-1cn 8272 ax-1re 8273 ax-icn 8274 ax-addcl 8275 ax-addrcl 8276 ax-mulcl 8277 ax-mulrcl 8278 ax-addcom 8279 ax-mulcom 8280 ax-addass 8281 ax-mulass 8282 ax-distr 8283 ax-i2m1 8284 ax-0lt1 8285 ax-1rid 8286 ax-0id 8287 ax-rnegex 8288 ax-precex 8289 ax-cnre 8290 ax-pre-ltirr 8291 ax-pre-ltwlin 8292 ax-pre-lttrn 8293 ax-pre-apti 8294 ax-pre-ltadd 8295 ax-pre-mulgt0 8296 ax-pre-mulext 8297 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rmo 2536 df-rab 2537 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-opab 4193 df-id 4438 df-po 4441 df-iso 4442 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-iota 5337 df-fun 5379 df-fv 5385 df-riota 6038 df-ov 6088 df-oprab 6089 df-mpo 6090 df-pnf 8362 df-mnf 8363 df-xr 8364 df-ltxr 8365 df-le 8366 df-sub 8500 df-neg 8501 df-reap 8905 df-ap 8912 df-div 9005 |
| This theorem is used by: nneo 9753 zeo2 9756 intfracq 10770 modqlt 10783 hashf1 11301 resqrexlemover 11790 resqrexlemcalc1 11794 cvgratz 12315 mertenslemi1 12318 efgt0 12467 tanaddap 12522 divconjdvds 12632 bitsmod 12739 mulgcd 12809 qredeq 12890 qredeu 12891 prmind2 12914 nnmaxpwlemnfac 12967 nnmaxpwlemparts 12968 pythagtriplem16 13078 pythagtriplem19 13081 pcprendvds2 13090 pcpremul 13092 pcadd 13139 4sqlem19 13208 znrrg 15044 dvrecap 15863 dveflem 15876 tangtx 15989 birthdaylem2 16145 pellexlem2 16149 chtqub 16215 mersenne 16216 perfectlem2 16219 perfect 16220 lgseisenlem1 16308 lgseisenlem3 16310 lgsquadlem1 16315 lgsquad2lem1 16319 m1lgs 16323 2sqlem8 16361 |
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