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| Mirrors > Home > MPE Home > Th. List > negsub | Structured version Visualization version GIF version | ||
| Description: Relationship between subtraction and negative. Theorem I.3 of [Apostol] p. 18. (Contributed by NM, 21-Jan-1997.) (Proof shortened by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| negsub | ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 + -𝐵) = (𝐴 − 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-neg 11419 | . . . 4 ⊢ -𝐵 = (0 − 𝐵) | |
| 2 | 1 | oveq2i 7409 | . . 3 ⊢ (𝐴 + -𝐵) = (𝐴 + (0 − 𝐵)) |
| 3 | 2 | a1i 11 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 + -𝐵) = (𝐴 + (0 − 𝐵))) |
| 4 | 0cn 11173 | . . 3 ⊢ 0 ∈ ℂ | |
| 5 | addsubass 11442 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 0 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐴 + 0) − 𝐵) = (𝐴 + (0 − 𝐵))) | |
| 6 | 4, 5 | mp3an2 1472 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐴 + 0) − 𝐵) = (𝐴 + (0 − 𝐵))) |
| 7 | simpl 486 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → 𝐴 ∈ ℂ) | |
| 8 | 7 | addridd 11385 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 + 0) = 𝐴) |
| 9 | 8 | oveq1d 7413 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐴 + 0) − 𝐵) = (𝐴 − 𝐵)) |
| 10 | 3, 6, 9 | 3eqtr2d 2805 | 1 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 + -𝐵) = (𝐴 − 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 = wceq 1562 ∈ wcel 2144 (class class class)co 7398 ℂcc 11073 0cc0 11075 + caddc 11078 − cmin 11416 -cneg 11417 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1817 ax-4 1831 ax-5 1932 ax-6 1989 ax-7 2030 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2214 ax-ext 2736 ax-sep 5248 ax-nul 5258 ax-pow 5324 ax-pr 5392 ax-un 7720 ax-resscn 11132 ax-1cn 11133 ax-icn 11134 ax-addcl 11135 ax-addrcl 11136 ax-mulcl 11137 ax-mulrcl 11138 ax-mulcom 11139 ax-addass 11140 ax-mulass 11141 ax-distr 11142 ax-i2m1 11143 ax-1ne0 11144 ax-1rid 11145 ax-rnegex 11146 ax-rrecex 11147 ax-cnre 11148 ax-pre-lttri 11149 ax-pre-lttrn 11150 ax-pre-ltadd 11151 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1100 df-3an 1101 df-tru 1565 df-fal 1575 df-ex 1802 df-nf 1806 df-sb 2093 df-mo 2568 df-eu 2598 df-clab 2743 df-cleq 2756 df-clel 2839 df-nfc 2913 df-ne 2960 df-nel 3064 df-ral 3079 df-rex 3089 df-reu 3370 df-rab 3417 df-v 3458 df-sbc 3747 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5103 df-opab 5165 df-mpt 5184 df-id 5544 df-po 5557 df-so 5558 df-xp 5655 df-rel 5656 df-cnv 5657 df-co 5658 df-dm 5659 df-rn 5660 df-res 5661 df-ima 5662 df-iota 6479 df-fun 6525 df-fn 6526 df-f 6527 df-f1 6528 df-fo 6529 df-f1o 6530 df-fv 6531 df-riota 7355 df-ov 7401 df-oprab 7402 df-mpo 7403 df-er 8680 df-en 8930 df-dom 8931 df-sdom 8932 df-pnf 11220 df-mnf 11221 df-ltxr 11223 df-sub 11418 df-neg 11419 |
| This theorem is referenced by: negdi2 11491 negsubdi2 11492 resubcli 11495 resubcl 11497 negsubi 11511 negsubd 11550 submul2 11629 addneg1mul 11631 mulsub 11632 divsubdir 11886 difgtsumgt 12536 elz2 12588 zsubcl 12615 qsubcl 12971 rexsub 13238 fzsubel 13567 ceim1l 13859 modcyc2 13919 negmod 13931 modsumfzodifsn 13959 expsub 14125 binom2sub 14235 seqshft 15100 resub 15156 imsub 15164 cjsub 15178 cjreim 15189 absdiflt 15347 absdifle 15348 abs2dif2 15363 subcn2 15624 bpoly2 16089 bpoly3 16090 efsub 16134 efi4p 16171 sinsub 16202 cossub 16203 demoivreALT 16235 difmod0 16323 dvdssub 16340 modgcd 16568 gzsubcl 16978 psgnunilem2 19537 cnfldsub 21454 itg1sub 25773 plyremlem 26370 sineq0 26591 logneg2 26682 ang180lem2 26877 asinsin 26959 atanneg 26974 atancj 26977 atanlogadd 26981 atanlogsublem 26982 atanlogsub 26983 2efiatan 26985 tanatan 26986 cosatan 26988 atans2 26998 dvatan 27002 zetacvg 27081 wilthlem1 27134 wilthlem2 27135 basellem8 27154 lgsvalmod 27382 cnnvm 30887 cncph 31024 hvsubdistr2 31255 lnfnsubi 32251 subfacval2 35542 itg2addnclem3 38177 lcmineqlem1 42651 pellexlem6 43416 pell14qrdich 43451 rmxm1 43516 rmym1 43517 addsubeq0 47895 omoeALTV 48312 omeoALTV 48313 emoo 48331 emee 48333 zlmodzxzequap 49126 flsubz 49149 |
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