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| Mirrors > Home > MPE Home > Th. List > 2lgsoddprmlem3c | Structured version Visualization version GIF version | ||
| Description: Lemma 3 for 2lgsoddprmlem3 27723. (Contributed by AV, 20-Jul-2021.) |
| Ref | Expression |
|---|---|
| 2lgsoddprmlem3c | ⊢ (((5↑2) − 1) / 8) = 3 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-5 12389 | . . . . . . 7 ⊢ 5 = (4 + 1) | |
| 2 | 1 | oveq1i 7422 | . . . . . 6 ⊢ (5↑2) = ((4 + 1)↑2) |
| 3 | 4cn 12409 | . . . . . . 7 ⊢ 4 ∈ ℂ | |
| 4 | binom21 14343 | . . . . . . 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 2784 | . . . . 5 ⊢ (5↑2) = (((4↑2) + (2 · 4)) + 1) |
| 7 | 6 | oveq1i 7422 | . . . 4 ⊢ ((5↑2) − 1) = ((((4↑2) + (2 · 4)) + 1) − 1) |
| 8 | 3cn 12405 | . . . . . 6 ⊢ 3 ∈ ℂ | |
| 9 | 8cn 12421 | . . . . . 6 ⊢ 8 ∈ ℂ | |
| 10 | 8, 9 | mulcli 11297 | . . . . 5 ⊢ (3 · 8) ∈ ℂ |
| 11 | ax-1cn 11239 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 12 | sq4e2t8 14322 | . . . . . . . 8 ⊢ (4↑2) = (2 · 8) | |
| 13 | 2cn 12399 | . . . . . . . . 9 ⊢ 2 ∈ ℂ | |
| 14 | 4t2e8 12492 | . . . . . . . . . 10 ⊢ (4 · 2) = 8 | |
| 15 | 9 | mullidi 11295 | . . . . . . . . . 10 ⊢ (1 · 8) = 8 |
| 16 | 14, 15 | eqtr4i 2787 | . . . . . . . . 9 ⊢ (4 · 2) = (1 · 8) |
| 17 | 3, 13, 16 | mulcomli 11299 | . . . . . . . 8 ⊢ (2 · 4) = (1 · 8) |
| 18 | 12, 17 | oveq12i 7424 | . . . . . . 7 ⊢ ((4↑2) + (2 · 4)) = ((2 · 8) + (1 · 8)) |
| 19 | 13, 11, 9 | adddiri 11303 | . . . . . . 7 ⊢ ((2 + 1) · 8) = ((2 · 8) + (1 · 8)) |
| 20 | 2p1e3 12465 | . . . . . . . 8 ⊢ (2 + 1) = 3 | |
| 21 | 20 | oveq1i 7422 | . . . . . . 7 ⊢ ((2 + 1) · 8) = (3 · 8) |
| 22 | 18, 19, 21 | 3eqtr2i 2790 | . . . . . 6 ⊢ ((4↑2) + (2 · 4)) = (3 · 8) |
| 23 | 22 | oveq1i 7422 | . . . . 5 ⊢ (((4↑2) + (2 · 4)) + 1) = ((3 · 8) + 1) |
| 24 | 10, 11, 23 | mvrraddi 11555 | . . . 4 ⊢ ((((4↑2) + (2 · 4)) + 1) − 1) = (3 · 8) |
| 25 | 7, 24 | eqtri 2784 | . . 3 ⊢ ((5↑2) − 1) = (3 · 8) |
| 26 | 25 | oveq1i 7422 | . 2 ⊢ (((5↑2) − 1) / 8) = ((3 · 8) / 8) |
| 27 | 0re 11291 | . . . 4 ⊢ 0 ∈ ℝ | |
| 28 | 8pos 12439 | . . . 4 ⊢ 0 < 8 | |
| 29 | 27, 28 | gtneii 11403 | . . 3 ⊢ 8 ≠ 0 |
| 30 | 8, 9, 29 | divcan4i 12045 | . 2 ⊢ ((3 · 8) / 8) = 3 |
| 31 | 26, 30 | eqtri 2784 | 1 ⊢ (((5↑2) − 1) / 8) = 3 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2145 (class class class)co 7412 ℂcc 11179 0cc0 11181 1c1 11182 + caddc 11184 · cmul 11186 − cmin 11522 / cdiv 11954 2c2 12378 3c3 12379 4c4 12380 5c5 12381 8c8 12384 ↑cexp 14184 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pow 5327 ax-pr 5391 ax-un 7740 ax-cnex 11237 ax-resscn 11238 ax-1cn 11239 ax-icn 11240 ax-addcl 11241 ax-addrcl 11242 ax-mulcl 11243 ax-mulrcl 11244 ax-mulcom 11245 ax-addass 11246 ax-mulass 11247 ax-distr 11248 ax-i2m1 11249 ax-1ne0 11250 ax-1rid 11251 ax-rnegex 11252 ax-rrecex 11253 ax-cnre 11254 ax-pre-lttri 11255 ax-pre-lttrn 11256 ax-pre-ltadd 11257 ax-pre-mulgt0 11258 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3063 df-ral 3078 df-rex 3088 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3453 df-sbc 3740 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4280 df-if 4483 df-pw 4559 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-iun 4953 df-br 5104 df-opab 5168 df-mpt 5187 df-tr 5213 df-id 5546 df-eprel 5551 df-po 5559 df-so 5560 df-fr 5604 df-we 5606 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-res 5663 df-ima 5664 df-pred 6297 df-ord 6358 df-on 6359 df-lim 6360 df-suc 6361 df-iota 6487 df-fun 6533 df-fn 6534 df-f 6535 df-f1 6536 df-fo 6537 df-f1o 6538 df-fv 6539 df-riota 7369 df-ov 7415 df-oprab 7416 df-mpo 7417 df-om 7867 df-2nd 7991 df-frecs 8283 df-wrecs 8314 df-recs 8363 df-rdg 8402 df-er 8701 df-en 8958 df-dom 8959 df-sdom 8960 df-pnf 11326 df-mnf 11327 df-xr 11328 df-ltxr 11329 df-le 11330 df-sub 11524 df-neg 11525 df-div 11955 df-nn 12317 df-2 12386 df-3 12387 df-4 12388 df-5 12389 df-6 12390 df-7 12391 df-8 12392 df-n0 12588 df-z 12675 df-uz 12947 df-seq 14125 df-exp 14185 |
| This theorem is used by: 2lgsoddprmlem3 27723 |
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