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| Mirrors > Home > MPE Home > Th. List > 3m1e2 | Structured version Visualization version GIF version | ||
| Description: 3 - 1 = 2. (Contributed by FL, 17-Oct-2010.) (Revised by NM, 10-Dec-2017.) (Proof shortened by AV, 6-Sep-2021.) |
| Ref | Expression |
|---|---|
| 3m1e2 | ⊢ (3 − 1) = 2 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2cn 12425 | . 2 ⊢ 2 ∈ ℂ | |
| 2 | ax-1cn 11265 | . 2 ⊢ 1 ∈ ℂ | |
| 3 | df-3 12413 | . 2 ⊢ 3 = (2 + 1) | |
| 4 | 1, 2, 3 | mvrraddi 11581 | 1 ⊢ (3 − 1) = 2 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 (class class class)co 7424 1c1 11208 − cmin 11548 2c2 12404 3c3 12405 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5327 ax-pr 5391 ax-un 7755 ax-resscn 11264 ax-1cn 11265 ax-icn 11266 ax-addcl 11267 ax-addrcl 11268 ax-mulcl 11269 ax-mulrcl 11270 ax-mulcom 11271 ax-addass 11272 ax-mulass 11273 ax-distr 11274 ax-i2m1 11275 ax-1ne0 11276 ax-1rid 11277 ax-rnegex 11278 ax-rrecex 11279 ax-cnre 11280 ax-pre-lttri 11281 ax-pre-lttrn 11282 ax-pre-ltadd 11283 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3848 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5546 df-po 5559 df-so 5560 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-iota 6497 df-fun 6545 df-fn 6546 df-f 6547 df-f1 6548 df-fo 6549 df-f1o 6550 df-fv 6551 df-riota 7381 df-ov 7427 df-oprab 7428 df-mpo 7429 df-er 8724 df-en 8981 df-dom 8982 df-sdom 8983 df-pnf 11352 df-mnf 11353 df-ltxr 11355 df-sub 11550 df-2 12412 df-3 12413 |
| This theorem is used by: ige3m2fz 13689 fzo13pr 13891 fzo0to3tp 13894 fldiv4p1lem1div2 13982 lsws3 15065 bpoly3 16233 rpnnen2lem3 16393 rpnnen2lem11 16401 3prm 16878 prmo3 17228 1cubrlem 27178 1cubr 27179 quart1 27193 log2cnv 27281 log2ublem3 27285 basellem8 27424 2lgslem3b 27733 2lgslem3d 27735 fltoprmlem2 28003 axlowdimlem16 29544 2pthd 30538 wlk2v2e 30767 ex-bc 31062 cyc3fv1 33748 cyc3fv2 33749 cyc3fv3 33750 iconstr 34448 cos9thpiminplylem2 34465 cos9thpiminplylem3 34466 fib4 35086 circlemethhgt 35322 cusgracyclt3v 36001 itg2addnclem3 38700 lcm3un 43174 aks4d1p1 43235 2np3bcnp1 43303 sin2t3rdpi 43513 cos2t3rdpi 43514 lhe4.4ex1a 45422 wallispilem4 47186 fmtnoge3 48723 fmtnoprmfac2lem1 48759 nnsum3primesle9 49000 grtriclwlk3 49151 gpg3kgrtriexlem5 49293 |
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