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| Mirrors > Home > MPE Home > Th. List > 2lgsoddprmlem3c | Structured version Visualization version GIF version | ||
| Description: Lemma 3 for 2lgsoddprmlem3 27746. (Contributed by AV, 20-Jul-2021.) |
| Ref | Expression |
|---|---|
| 2lgsoddprmlem3c | ⊢ (((5↑2) − 1) / 8) = 3 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-5 12411 | . . . . . . 7 ⊢ 5 = (4 + 1) | |
| 2 | 1 | oveq1i 7430 | . . . . . 6 ⊢ (5↑2) = ((4 + 1)↑2) |
| 3 | 4cn 12431 | . . . . . . 7 ⊢ 4 ∈ ℂ | |
| 4 | binom21 14366 | . . . . . . 7 ⊢ (4 ∈ ℂ → ((4 + 1)↑2) = (((4↑2) + (2 · 4)) + 1)) | |
| 5 | 3, 4 | ax-mp 5 | . . . . . 6 ⊢ ((4 + 1)↑2) = (((4↑2) + (2 · 4)) + 1) |
| 6 | 2, 5 | eqtri 2783 | . . . . 5 ⊢ (5↑2) = (((4↑2) + (2 · 4)) + 1) |
| 7 | 6 | oveq1i 7430 | . . . 4 ⊢ ((5↑2) − 1) = ((((4↑2) + (2 · 4)) + 1) − 1) |
| 8 | 3cn 12427 | . . . . . 6 ⊢ 3 ∈ ℂ | |
| 9 | 8cn 12443 | . . . . . 6 ⊢ 8 ∈ ℂ | |
| 10 | 8, 9 | mulcli 11319 | . . . . 5 ⊢ (3 · 8) ∈ ℂ |
| 11 | ax-1cn 11261 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 12 | sq4e2t8 14345 | . . . . . . . 8 ⊢ (4↑2) = (2 · 8) | |
| 13 | 2cn 12421 | . . . . . . . . 9 ⊢ 2 ∈ ℂ | |
| 14 | 4t2e8 12514 | . . . . . . . . . 10 ⊢ (4 · 2) = 8 | |
| 15 | 9 | mullidi 11317 | . . . . . . . . . 10 ⊢ (1 · 8) = 8 |
| 16 | 14, 15 | eqtr4i 2786 | . . . . . . . . 9 ⊢ (4 · 2) = (1 · 8) |
| 17 | 3, 13, 16 | mulcomli 11321 | . . . . . . . 8 ⊢ (2 · 4) = (1 · 8) |
| 18 | 12, 17 | oveq12i 7432 | . . . . . . 7 ⊢ ((4↑2) + (2 · 4)) = ((2 · 8) + (1 · 8)) |
| 19 | 13, 11, 9 | adddiri 11325 | . . . . . . 7 ⊢ ((2 + 1) · 8) = ((2 · 8) + (1 · 8)) |
| 20 | 2p1e3 12487 | . . . . . . . 8 ⊢ (2 + 1) = 3 | |
| 21 | 20 | oveq1i 7430 | . . . . . . 7 ⊢ ((2 + 1) · 8) = (3 · 8) |
| 22 | 18, 19, 21 | 3eqtr2i 2789 | . . . . . 6 ⊢ ((4↑2) + (2 · 4)) = (3 · 8) |
| 23 | 22 | oveq1i 7430 | . . . . 5 ⊢ (((4↑2) + (2 · 4)) + 1) = ((3 · 8) + 1) |
| 24 | 10, 11, 23 | mvrraddi 11577 | . . . 4 ⊢ ((((4↑2) + (2 · 4)) + 1) − 1) = (3 · 8) |
| 25 | 7, 24 | eqtri 2783 | . . 3 ⊢ ((5↑2) − 1) = (3 · 8) |
| 26 | 25 | oveq1i 7430 | . 2 ⊢ (((5↑2) − 1) / 8) = ((3 · 8) / 8) |
| 27 | 0re 11313 | . . . 4 ⊢ 0 ∈ ℝ | |
| 28 | 8pos 12461 | . . . 4 ⊢ 0 < 8 | |
| 29 | 27, 28 | gtneii 11425 | . . 3 ⊢ 8 ≠ 0 |
| 30 | 8, 9, 29 | divcan4i 12067 | . 2 ⊢ ((3 · 8) / 8) = 3 |
| 31 | 26, 30 | eqtri 2783 | 1 ⊢ (((5↑2) − 1) / 8) = 3 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 ∈ wcel 2144 (class class class)co 7420 ℂcc 11201 0cc0 11203 1c1 11204 + caddc 11206 · cmul 11208 − cmin 11544 / cdiv 11976 2c2 12400 3c3 12401 4c4 12402 5c5 12403 8c8 12406 ↑cexp 14207 |
| 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 7751 ax-cnex 11259 ax-resscn 11260 ax-1cn 11261 ax-icn 11262 ax-addcl 11263 ax-addrcl 11264 ax-mulcl 11265 ax-mulrcl 11266 ax-mulcom 11267 ax-addass 11268 ax-mulass 11269 ax-distr 11270 ax-i2m1 11271 ax-1ne0 11272 ax-1rid 11273 ax-rnegex 11274 ax-rrecex 11275 ax-cnre 11276 ax-pre-lttri 11277 ax-pre-lttrn 11278 ax-pre-ltadd 11279 ax-pre-mulgt0 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-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 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-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 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-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-riota 7377 df-ov 7423 df-oprab 7424 df-mpo 7425 df-om 7878 df-2nd 8002 df-frecs 8302 df-wrecs 8333 df-recs 8382 df-rdg 8421 df-er 8720 df-en 8977 df-dom 8978 df-sdom 8979 df-pnf 11348 df-mnf 11349 df-xr 11350 df-ltxr 11351 df-le 11352 df-sub 11546 df-neg 11547 df-div 11977 df-nn 12339 df-2 12408 df-3 12409 df-4 12410 df-5 12411 df-6 12412 df-7 12413 df-8 12414 df-n0 12610 df-z 12697 df-uz 12969 df-seq 14148 df-exp 14208 |
| This theorem is used by: 2lgsoddprmlem3 27746 |
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