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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 11377 | . . . 4 ⊢ -𝐵 = (0 − 𝐵) | |
| 2 | 1 | oveq2i 7375 | . . 3 ⊢ (𝐴 + -𝐵) = (𝐴 + (0 − 𝐵)) |
| 3 | 2 | a1i 11 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 + -𝐵) = (𝐴 + (0 − 𝐵))) |
| 4 | 0cn 11133 | . . 3 ⊢ 0 ∈ ℂ | |
| 5 | addsubass 11400 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 0 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐴 + 0) − 𝐵) = (𝐴 + (0 − 𝐵))) | |
| 6 | 4, 5 | mp3an2 1452 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐴 + 0) − 𝐵) = (𝐴 + (0 − 𝐵))) |
| 7 | simpl 482 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → 𝐴 ∈ ℂ) | |
| 8 | 7 | addridd 11343 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 + 0) = 𝐴) |
| 9 | 8 | oveq1d 7379 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → ((𝐴 + 0) − 𝐵) = (𝐴 − 𝐵)) |
| 10 | 3, 6, 9 | 3eqtr2d 2778 | 1 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 + -𝐵) = (𝐴 − 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 = wceq 1542 ∈ wcel 2114 (class class class)co 7364 ℂcc 11033 0cc0 11035 + caddc 11038 − cmin 11374 -cneg 11375 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5232 ax-nul 5242 ax-pow 5306 ax-pr 5374 ax-un 7686 ax-resscn 11092 ax-1cn 11093 ax-icn 11094 ax-addcl 11095 ax-addrcl 11096 ax-mulcl 11097 ax-mulrcl 11098 ax-mulcom 11099 ax-addass 11100 ax-mulass 11101 ax-distr 11102 ax-i2m1 11103 ax-1ne0 11104 ax-1rid 11105 ax-rnegex 11106 ax-rrecex 11107 ax-cnre 11108 ax-pre-lttri 11109 ax-pre-lttrn 11110 ax-pre-ltadd 11111 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3063 df-reu 3344 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5523 df-po 5536 df-so 5537 df-xp 5634 df-rel 5635 df-cnv 5636 df-co 5637 df-dm 5638 df-rn 5639 df-res 5640 df-ima 5641 df-iota 6452 df-fun 6498 df-fn 6499 df-f 6500 df-f1 6501 df-fo 6502 df-f1o 6503 df-fv 6504 df-riota 7321 df-ov 7367 df-oprab 7368 df-mpo 7369 df-er 8640 df-en 8891 df-dom 8892 df-sdom 8893 df-pnf 11178 df-mnf 11179 df-ltxr 11181 df-sub 11376 df-neg 11377 |
| This theorem is referenced by: negdi2 11449 negsubdi2 11450 resubcli 11453 resubcl 11455 negsubi 11469 negsubd 11508 submul2 11587 addneg1mul 11589 mulsub 11590 divsubdir 11845 difgtsumgt 12487 elz2 12539 zsubcl 12566 qsubcl 12915 rexsub 13182 fzsubel 13511 ceim1l 13803 modcyc2 13863 negmod 13875 modsumfzodifsn 13903 expsub 14069 binom2sub 14179 seqshft 15044 resub 15086 imsub 15094 cjsub 15108 cjreim 15119 absdiflt 15277 absdifle 15278 abs2dif2 15293 subcn2 15554 bpoly2 16019 bpoly3 16020 efsub 16064 efi4p 16101 sinsub 16132 cossub 16133 demoivreALT 16165 difmod0 16253 dvdssub 16270 modgcd 16498 gzsubcl 16908 psgnunilem2 19467 cnfldsub 21393 itg1sub 25692 plyremlem 26287 sineq0 26507 logneg2 26598 ang180lem2 26793 asinsin 26875 atanneg 26890 atancj 26893 atanlogadd 26897 atanlogsublem 26898 atanlogsub 26899 2efiatan 26901 tanatan 26902 cosatan 26904 atans2 26914 dvatan 26918 zetacvg 26998 wilthlem1 27051 wilthlem2 27052 basellem8 27071 lgsvalmod 27299 cnnvm 30774 cncph 30911 hvsubdistr2 31142 lnfnsubi 32138 subfacval2 35391 itg2addnclem3 38016 lcmineqlem1 42490 pellexlem6 43288 pell14qrdich 43323 rmxm1 43388 rmym1 43389 addsubeq0 47764 omoeALTV 48181 omeoALTV 48182 emoo 48200 emee 48202 zlmodzxzequap 48995 flsubz 49018 |
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