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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 12331 | . 2 ⊢ 2 ∈ ℂ | |
| 2 | ax-1cn 11173 | . 2 ⊢ 1 ∈ ℂ | |
| 3 | df-3 12319 | . 2 ⊢ 3 = (2 + 1) | |
| 4 | 1, 2, 3 | mvrraddi 11489 | 1 ⊢ (3 − 1) = 2 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 (class class class)co 7419 1c1 11116 − cmin 11456 2c2 12310 3c3 12311 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-10 2179 ax-11 2195 ax-12 2216 ax-ext 2737 ax-sep 5259 ax-nul 5271 ax-pow 5338 ax-pr 5406 ax-un 7742 ax-resscn 11172 ax-1cn 11173 ax-icn 11174 ax-addcl 11175 ax-addrcl 11176 ax-mulcl 11177 ax-mulrcl 11178 ax-mulcom 11179 ax-addass 11180 ax-mulass 11181 ax-distr 11182 ax-i2m1 11183 ax-1ne0 11184 ax-1rid 11185 ax-rnegex 11186 ax-rrecex 11187 ax-cnre 11188 ax-pre-lttri 11189 ax-pre-lttrn 11190 ax-pre-ltadd 11191 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2569 df-eu 2599 df-clab 2744 df-cleq 2757 df-clel 2840 df-nfc 2914 df-ne 2961 df-nel 3067 df-ral 3082 df-rex 3092 df-reu 3372 df-rab 3419 df-v 3459 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-pw 4566 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-br 5112 df-opab 5176 df-mpt 5195 df-id 5558 df-po 5571 df-so 5572 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-iota 6496 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7376 df-ov 7422 df-oprab 7423 df-mpo 7424 df-er 8700 df-en 8950 df-dom 8951 df-sdom 8952 df-pnf 11260 df-mnf 11261 df-ltxr 11263 df-sub 11458 df-2 12318 df-3 12319 |
| This theorem is used by: ige3m2fz 13593 fzo13pr 13795 fzo0to3tp 13798 fldiv4p1lem1div2 13886 lsws3 14966 bpoly3 16134 rpnnen2lem3 16294 rpnnen2lem11 16302 3prm 16774 prmo3 17123 1cubrlem 27057 1cubr 27058 quart1 27072 log2cnv 27160 log2ublem3 27164 basellem8 27303 2lgslem3b 27612 2lgslem3d 27614 axlowdimlem16 29362 2pthd 30356 wlk2v2e 30579 ex-bc 30874 cyc3fv1 33521 cyc3fv2 33522 cyc3fv3 33523 iconstr 34220 cos9thpiminplylem2 34237 cos9thpiminplylem3 34238 fib4 34859 circlemethhgt 35095 cusgracyclt3v 35685 itg2addnclem3 38381 lcm3un 42840 aks4d1p1 42901 2np3bcnp1 42969 sin2t3rdpi 43172 cos2t3rdpi 43173 lhe4.4ex1a 45097 wallispilem4 46840 fmtnoge3 48340 fmtnoprmfac2lem1 48376 nnsum3primesle9 48617 grtriclwlk3 48768 gpg3kgrtriexlem5 48910 |
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