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| Mirrors > Home > MPE Home > Th. List > sqneg | Structured version Visualization version GIF version | ||
| Description: The square of the negative of a number. (Contributed by NM, 15-Jan-2006.) |
| Ref | Expression |
|---|---|
| sqneg | ⊢ (𝐴 ∈ ℂ → (-𝐴↑2) = (𝐴↑2)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | mul2neg 11578 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐴 ∈ ℂ) → (-𝐴 · -𝐴) = (𝐴 · 𝐴)) | |
| 2 | 1 | anidms 566 | . 2 ⊢ (𝐴 ∈ ℂ → (-𝐴 · -𝐴) = (𝐴 · 𝐴)) |
| 3 | negcl 11382 | . . 3 ⊢ (𝐴 ∈ ℂ → -𝐴 ∈ ℂ) | |
| 4 | sqval 14065 | . . 3 ⊢ (-𝐴 ∈ ℂ → (-𝐴↑2) = (-𝐴 · -𝐴)) | |
| 5 | 3, 4 | syl 17 | . 2 ⊢ (𝐴 ∈ ℂ → (-𝐴↑2) = (-𝐴 · -𝐴)) |
| 6 | sqval 14065 | . 2 ⊢ (𝐴 ∈ ℂ → (𝐴↑2) = (𝐴 · 𝐴)) | |
| 7 | 2, 5, 6 | 3eqtr4d 2782 | 1 ⊢ (𝐴 ∈ ℂ → (-𝐴↑2) = (𝐴↑2)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 = wceq 1542 ∈ wcel 2114 (class class class)co 7358 ℂcc 11025 · cmul 11032 -cneg 11367 2c2 12225 ↑cexp 14012 |
| 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 5231 ax-nul 5241 ax-pow 5300 ax-pr 5368 ax-un 7680 ax-cnex 11083 ax-resscn 11084 ax-1cn 11085 ax-icn 11086 ax-addcl 11087 ax-addrcl 11088 ax-mulcl 11089 ax-mulrcl 11090 ax-mulcom 11091 ax-addass 11092 ax-mulass 11093 ax-distr 11094 ax-i2m1 11095 ax-1ne0 11096 ax-1rid 11097 ax-rnegex 11098 ax-rrecex 11099 ax-cnre 11100 ax-pre-lttri 11101 ax-pre-lttrn 11102 ax-pre-ltadd 11103 ax-pre-mulgt0 11104 |
| 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-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-tr 5194 df-id 5517 df-eprel 5522 df-po 5530 df-so 5531 df-fr 5575 df-we 5577 df-xp 5628 df-rel 5629 df-cnv 5630 df-co 5631 df-dm 5632 df-rn 5633 df-res 5634 df-ima 5635 df-pred 6257 df-ord 6318 df-on 6319 df-lim 6320 df-suc 6321 df-iota 6446 df-fun 6492 df-fn 6493 df-f 6494 df-f1 6495 df-fo 6496 df-f1o 6497 df-fv 6498 df-riota 7315 df-ov 7361 df-oprab 7362 df-mpo 7363 df-om 7809 df-2nd 7934 df-frecs 8222 df-wrecs 8253 df-recs 8302 df-rdg 8340 df-er 8634 df-en 8885 df-dom 8886 df-sdom 8887 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11368 df-neg 11369 df-nn 12164 df-2 12233 df-n0 12427 df-z 12514 df-uz 12778 df-seq 13953 df-exp 14013 |
| This theorem is referenced by: sqnegd 14067 sqsubswap 14068 neg1sqe1 14147 binom2sub 14171 discr 14191 reusq0 15416 oexpneg 16303 cos2pi 26451 root1id 26729 dcubic1lem 26818 dcubic 26821 mcubic 26822 dquart 26828 asinlem 26843 asinlem2 26844 sinasin 26864 cosasin 26879 atandmneg 26881 cosatan 26896 atantayl2 26913 2sqlem4 27396 2sqnn0 27413 axlowdimlem16 29038 ex-exp 30533 ipidsq 30794 pell1234qrreccl 43290 pell1234qrdich 43297 pell14qrdich 43305 oexpnegALTV 48155 oexpnegnz 48156 itsclc0yqsollem1 49240 itscnhlinecirc02plem1 49260 |
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