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| Mirrors > Home > MPE Home > Th. List > negsubi | Structured version Visualization version GIF version | ||
| Description: Relationship between subtraction and negative. Theorem I.3 of [Apostol] p. 18. (Contributed by NM, 26-Nov-1994.) (Proof shortened by Andrew Salmon, 22-Oct-2011.) |
| Ref | Expression |
|---|---|
| negidi.1 | ⊢ 𝐴 ∈ ℂ |
| pncan3i.2 | ⊢ 𝐵 ∈ ℂ |
| Ref | Expression |
|---|---|
| negsubi | ⊢ (𝐴 + -𝐵) = (𝐴 − 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | negidi.1 | . 2 ⊢ 𝐴 ∈ ℂ | |
| 2 | pncan3i.2 | . 2 ⊢ 𝐵 ∈ ℂ | |
| 3 | negsub 11442 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) → (𝐴 + -𝐵) = (𝐴 − 𝐵)) | |
| 4 | 1, 2, 3 | mp2an 693 | 1 ⊢ (𝐴 + -𝐵) = (𝐴 − 𝐵) |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ∈ wcel 2114 (class class class)co 7367 ℂcc 11036 + caddc 11041 − cmin 11377 -cneg 11378 |
| 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 2708 ax-sep 5231 ax-nul 5241 ax-pow 5307 ax-pr 5375 ax-un 7689 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-addrcl 11099 ax-mulcl 11100 ax-mulrcl 11101 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-i2m1 11106 ax-1ne0 11107 ax-1rid 11108 ax-rnegex 11109 ax-rrecex 11110 ax-cnre 11111 ax-pre-lttri 11112 ax-pre-lttrn 11113 ax-pre-ltadd 11114 |
| 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 2539 df-eu 2569 df-clab 2715 df-cleq 2728 df-clel 2811 df-nfc 2885 df-ne 2933 df-nel 3037 df-ral 3052 df-rex 3062 df-reu 3343 df-rab 3390 df-v 3431 df-sbc 3729 df-csb 3838 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-pw 4543 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-opab 5148 df-mpt 5167 df-id 5526 df-po 5539 df-so 5540 df-xp 5637 df-rel 5638 df-cnv 5639 df-co 5640 df-dm 5641 df-rn 5642 df-res 5643 df-ima 5644 df-iota 6454 df-fun 6500 df-fn 6501 df-f 6502 df-f1 6503 df-fo 6504 df-f1o 6505 df-fv 6506 df-riota 7324 df-ov 7370 df-oprab 7371 df-mpo 7372 df-er 8643 df-en 8894 df-dom 8895 df-sdom 8896 df-pnf 11181 df-mnf 11182 df-ltxr 11184 df-sub 11379 df-neg 11380 |
| This theorem is referenced by: negsubdii 11479 negsubdi2i 11480 crreczi 14190 modsubi 17043 cosq14gt0 26474 cosq14ge0 26475 cosne0 26493 resinf1o 26500 eff1o 26513 1cubrlem 26805 acosbnd 26864 atanlogsublem 26879 dvatan 26899 log2cnv 26908 lgsdir2lem1 27288 addsqnreup 27406 ax5seglem7 29004 normlem9 31189 normpari 31225 polid2i 31228 lnophmlem2 32088 cos9thpiminplylem5 33930 ballotlem2 34633 quad3 35852 cosnegpi 46295 dirkertrigeqlem3 46528 3exp4mod41 48079 zlmodzxzequap 48975 |
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