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| Mirrors > Home > MPE Home > Th. List > pncan1 | Structured version Visualization version GIF version | ||
| Description: Cancellation law for addition and subtraction with 1. (Contributed by Alexander van der Vekens, 3-Oct-2018.) |
| Ref | Expression |
|---|---|
| pncan1 | ⊢ (𝐴 ∈ ℂ → ((𝐴 + 1) − 1) = 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | id 23 | . 2 ⊢ (𝐴 ∈ ℂ → 𝐴 ∈ ℂ) | |
| 2 | 1cnd 11306 | . 2 ⊢ (𝐴 ∈ ℂ → 1 ∈ ℂ) | |
| 3 | 1, 2 | pncand 11674 | 1 ⊢ (𝐴 ∈ ℂ → ((𝐴 + 1) − 1) = 𝐴) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 ∈ wcel 2144 (class class class)co 7421 ℂcc 11202 1c1 11205 + caddc 11207 − cmin 11545 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7752 ax-resscn 11261 ax-1cn 11262 ax-icn 11263 ax-addcl 11264 ax-addrcl 11265 ax-mulcl 11266 ax-mulrcl 11267 ax-mulcom 11268 ax-addass 11269 ax-mulass 11270 ax-distr 11271 ax-i2m1 11272 ax-1ne0 11273 ax-1rid 11274 ax-rnegex 11275 ax-rrecex 11276 ax-cnre 11277 ax-pre-lttri 11278 ax-pre-lttrn 11279 ax-pre-ltadd 11280 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-po 5558 df-so 5559 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-iota 6494 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-riota 7378 df-ov 7424 df-oprab 7425 df-mpo 7426 df-er 8721 df-en 8978 df-dom 8979 df-sdom 8980 df-pnf 11349 df-mnf 11350 df-ltxr 11352 df-sub 11547 |
| This theorem is used by: nn0split 13781 nn0disj 13782 elfzom1elp1fzo1 13906 sqoddm1div8 14391 wrdlenccats1lenm1 14775 ccats1pfxeq 14868 ltoddhalfle 16537 pwp1fsum 16567 flodddiv4 16591 prmop1 17222 psdpw 22497 cayhamlem1 23190 2lgslem1c 27726 2lgslem3a 27729 wlklenvm1 30208 wwlknp 30438 wwlknlsw 30442 0enwwlksnge1 30459 wlkiswwlks1 30462 wspthsnwspthsnon 30511 wspthsnonn0vne 30512 elwspths2spth 30565 wwlksext2clwwlk 30654 numclwwlk2lem1lem 30949 numclwlk2lem2f 30984 poimirlem4 38636 poimirlem10 38642 poimirlem19 38651 poimirlem28 38660 sumnnodd 46736 iccpartgtprec 48596 fmtnom1nn 48711 fmtnorec1 48716 sfprmdvdsmersenne 48782 proththdlem 48792 41prothprmlem1 48796 ppivalnnprm 48804 dfodd6 48829 evenp1odd 48832 perfectALTVlem1 48913 isubgr3stgrlem2 49159 gpgvtxedg0 49255 altgsumbcALT 49559 fllog2 49774 nnpw2blen 49786 dig2nn1st 49811 nn0sumshdiglemA 49825 nn0sumshdiglemB 49826 aacllem 51108 |
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