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Mirrors > Home > MPE Home > Th. List > 2m1e1 | Structured version Visualization version GIF version |
Description: 2 - 1 = 1. The result is on the right-hand-side to be consistent with similar proofs like 4p4e8 11793. (Contributed by David A. Wheeler, 4-Jan-2017.) |
Ref | Expression |
---|---|
2m1e1 | ⊢ (2 − 1) = 1 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2cn 11713 | . 2 ⊢ 2 ∈ ℂ | |
2 | ax-1cn 10595 | . 2 ⊢ 1 ∈ ℂ | |
3 | 1p1e2 11763 | . 2 ⊢ (1 + 1) = 2 | |
4 | 1, 2, 2, 3 | subaddrii 10975 | 1 ⊢ (2 − 1) = 1 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1537 (class class class)co 7156 1c1 10538 − cmin 10870 2c2 11693 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-resscn 10594 ax-1cn 10595 ax-icn 10596 ax-addcl 10597 ax-addrcl 10598 ax-mulcl 10599 ax-mulrcl 10600 ax-mulcom 10601 ax-addass 10602 ax-mulass 10603 ax-distr 10604 ax-i2m1 10605 ax-1ne0 10606 ax-1rid 10607 ax-rnegex 10608 ax-rrecex 10609 ax-cnre 10610 ax-pre-lttri 10611 ax-pre-lttrn 10612 ax-pre-ltadd 10613 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-reu 3145 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-br 5067 df-opab 5129 df-mpt 5147 df-id 5460 df-po 5474 df-so 5475 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-riota 7114 df-ov 7159 df-oprab 7160 df-mpo 7161 df-er 8289 df-en 8510 df-dom 8511 df-sdom 8512 df-pnf 10677 df-mnf 10678 df-ltxr 10680 df-sub 10872 df-2 11701 |
This theorem is referenced by: 1e2m1 11765 1mhlfehlf 11857 subhalfhalf 11872 addltmul 11874 xp1d2m1eqxm1d2 11892 nn0lt2 12046 nn0le2is012 12047 zeo 12069 fzo0to2pr 13123 fzosplitprm1 13148 bcn2 13680 lsws2 14266 swrds2m 14303 wrdl2exs2 14308 swrd2lsw 14314 geo2sum2 15230 bpolydiflem 15408 bpoly2 15411 fsumcube 15414 ege2le3 15443 cos2tsin 15532 odd2np1 15690 oddp1even 15693 oddge22np1 15698 prmdiv 16122 vfermltlALT 16139 prmo2 16376 htpycc 23584 pco1 23619 pcohtpylem 23623 pcopt 23626 pcorevlem 23630 cos2pi 25062 atans2 25509 log2ublem3 25526 ppiprm 25728 ppinprm 25729 chtprm 25730 chtnprm 25731 chtublem 25787 chtub 25788 lgslem4 25876 gausslemma2dlem1a 25941 lgseisenlem1 25951 2lgslem3c 25974 2sq2 26009 rplogsumlem1 26060 logdivsum 26109 log2sumbnd 26120 axlowdim 26747 wwlksnextwrd 27675 rusgrnumwwlkl1 27747 clwlkclwwlklem2a1 27770 clwlkclwwlklem2a4 27775 clwlkclwwlklem2 27778 clwlkclwwlklem3 27779 clwwlkn2 27822 clwwlkext2edg 27835 numclwlk2lem2f 28156 frgrregord013 28174 ex-fl 28226 xnn01gt 30495 wrdt2ind 30627 cshw1s2 30634 cyc2fv1 30763 cyc2fv2 30764 archirngz 30818 eulerpartlemd 31624 fibp1 31659 fib3 31661 ballotlem2 31746 subfacp1lem5 32431 dnibndlem10 33826 dvasin 34993 areacirclem1 34997 lcm2un 39135 2xp3dxp2ge1d 39146 trclfvdecomr 40122 hashnzfz2 40702 lhe4.4ex1a 40710 infleinflem2 41688 sumnnodd 41960 stoweidlem26 42360 wallispilem4 42402 wallispi2lem1 42405 wallispi2lem2 42406 fouriersw 42565 fmtnorec2lem 43753 fmtnorec3 43759 fmtnorec4 43760 m5prm 43810 sfprmdvdsmersenne 43817 lighneallem3 43821 3exp4mod41 43830 2nodd 44128 nnolog2flm1 44699 |
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