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| Mirrors > Home > MPE Home > Th. List > 2lgsoddprmlem3c | Structured version Visualization version GIF version | ||
| Description: Lemma 3 for 2lgsoddprmlem3 27742. (Contributed by AV, 20-Jul-2021.) |
| Ref | Expression |
|---|---|
| 2lgsoddprmlem3c | ⊢ (((5↑2) − 1) / 8) = 3 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-5 12409 | . . . . . . 7 ⊢ 5 = (4 + 1) | |
| 2 | 1 | oveq1i 7431 | . . . . . 6 ⊢ (5↑2) = ((4 + 1)↑2) |
| 3 | 4cn 12429 | . . . . . . 7 ⊢ 4 ∈ ℂ | |
| 4 | binom21 14364 | . . . . . . 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 7431 | . . . 4 ⊢ ((5↑2) − 1) = ((((4↑2) + (2 · 4)) + 1) − 1) |
| 8 | 3cn 12425 | . . . . . 6 ⊢ 3 ∈ ℂ | |
| 9 | 8cn 12441 | . . . . . 6 ⊢ 8 ∈ ℂ | |
| 10 | 8, 9 | mulcli 11317 | . . . . 5 ⊢ (3 · 8) ∈ ℂ |
| 11 | ax-1cn 11259 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 12 | sq4e2t8 14343 | . . . . . . . 8 ⊢ (4↑2) = (2 · 8) | |
| 13 | 2cn 12419 | . . . . . . . . 9 ⊢ 2 ∈ ℂ | |
| 14 | 4t2e8 12512 | . . . . . . . . . 10 ⊢ (4 · 2) = 8 | |
| 15 | 9 | mullidi 11315 | . . . . . . . . . 10 ⊢ (1 · 8) = 8 |
| 16 | 14, 15 | eqtr4i 2787 | . . . . . . . . 9 ⊢ (4 · 2) = (1 · 8) |
| 17 | 3, 13, 16 | mulcomli 11319 | . . . . . . . 8 ⊢ (2 · 4) = (1 · 8) |
| 18 | 12, 17 | oveq12i 7433 | . . . . . . 7 ⊢ ((4↑2) + (2 · 4)) = ((2 · 8) + (1 · 8)) |
| 19 | 13, 11, 9 | adddiri 11323 | . . . . . . 7 ⊢ ((2 + 1) · 8) = ((2 · 8) + (1 · 8)) |
| 20 | 2p1e3 12485 | . . . . . . . 8 ⊢ (2 + 1) = 3 | |
| 21 | 20 | oveq1i 7431 | . . . . . . 7 ⊢ ((2 + 1) · 8) = (3 · 8) |
| 22 | 18, 19, 21 | 3eqtr2i 2790 | . . . . . 6 ⊢ ((4↑2) + (2 · 4)) = (3 · 8) |
| 23 | 22 | oveq1i 7431 | . . . . 5 ⊢ (((4↑2) + (2 · 4)) + 1) = ((3 · 8) + 1) |
| 24 | 10, 11, 23 | mvrraddi 11575 | . . . 4 ⊢ ((((4↑2) + (2 · 4)) + 1) − 1) = (3 · 8) |
| 25 | 7, 24 | eqtri 2784 | . . 3 ⊢ ((5↑2) − 1) = (3 · 8) |
| 26 | 25 | oveq1i 7431 | . 2 ⊢ (((5↑2) − 1) / 8) = ((3 · 8) / 8) |
| 27 | 0re 11311 | . . . 4 ⊢ 0 ∈ ℝ | |
| 28 | 8pos 12459 | . . . 4 ⊢ 0 < 8 | |
| 29 | 27, 28 | gtneii 11423 | . . 3 ⊢ 8 ≠ 0 |
| 30 | 8, 9, 29 | divcan4i 12065 | . 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 7421 ℂcc 11199 0cc0 11201 1c1 11202 + caddc 11204 · cmul 11206 − cmin 11542 / cdiv 11974 2c2 12398 3c3 12399 4c4 12400 5c5 12401 8c8 12404 ↑cexp 14205 |
| 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 7752 ax-cnex 11257 ax-resscn 11258 ax-1cn 11259 ax-icn 11260 ax-addcl 11261 ax-addrcl 11262 ax-mulcl 11263 ax-mulrcl 11264 ax-mulcom 11265 ax-addass 11266 ax-mulass 11267 ax-distr 11268 ax-i2m1 11269 ax-1ne0 11270 ax-1rid 11271 ax-rnegex 11272 ax-rrecex 11273 ax-cnre 11274 ax-pre-lttri 11275 ax-pre-lttrn 11276 ax-pre-ltadd 11277 ax-pre-mulgt0 11278 |
| 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 3900 df-un 3902 df-in 3904 df-ss 3915 df-pss 4035 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 6305 df-ord 6366 df-on 6367 df-lim 6368 df-suc 6369 df-iota 6495 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-om 7879 df-2nd 8003 df-frecs 8300 df-wrecs 8331 df-recs 8380 df-rdg 8419 df-er 8718 df-en 8975 df-dom 8976 df-sdom 8977 df-pnf 11346 df-mnf 11347 df-xr 11348 df-ltxr 11349 df-le 11350 df-sub 11544 df-neg 11545 df-div 11975 df-nn 12337 df-2 12406 df-3 12407 df-4 12408 df-5 12409 df-6 12410 df-7 12411 df-8 12412 df-n0 12608 df-z 12695 df-uz 12967 df-seq 14146 df-exp 14206 |
| This theorem is used by: 2lgsoddprmlem3 27742 |
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