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| Mirrors > Home > MPE Home > Th. List > ex-bc | Structured version Visualization version GIF version | ||
| Description: Example for df-bc 14415. (Contributed by AV, 4-Sep-2021.) |
| Ref | Expression |
|---|---|
| ex-bc | ⊢ (5C3) = ;10 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-5 12378 | . . 3 ⊢ 5 = (4 + 1) | |
| 2 | 1 | oveq1i 7418 | . 2 ⊢ (5C3) = ((4 + 1)C3) |
| 3 | 4bc3eq4 14440 | . . . 4 ⊢ (4C3) = 4 | |
| 4 | 3m1e2 12440 | . . . . . 6 ⊢ (3 − 1) = 2 | |
| 5 | 4 | oveq2i 7419 | . . . . 5 ⊢ (4C(3 − 1)) = (4C2) |
| 6 | 4bc2eq6 14441 | . . . . 5 ⊢ (4C2) = 6 | |
| 7 | 5, 6 | eqtri 2783 | . . . 4 ⊢ (4C(3 − 1)) = 6 |
| 8 | 3, 7 | oveq12i 7420 | . . 3 ⊢ ((4C3) + (4C(3 − 1))) = (4 + 6) |
| 9 | 4nn0 12595 | . . . 4 ⊢ 4 ∈ ℕ0 | |
| 10 | 3z 12699 | . . . 4 ⊢ 3 ∈ ℤ | |
| 11 | bcpasc 14433 | . . . 4 ⊢ ((4 ∈ ℕ0 ∧ 3 ∈ ℤ) → ((4C3) + (4C(3 − 1))) = ((4 + 1)C3)) | |
| 12 | 9, 10, 11 | mp2an 705 | . . 3 ⊢ ((4C3) + (4C(3 − 1))) = ((4 + 1)C3) |
| 13 | 6cn 12404 | . . . 4 ⊢ 6 ∈ ℂ | |
| 14 | 4cn 12398 | . . . 4 ⊢ 4 ∈ ℂ | |
| 15 | 6p4e10 12861 | . . . 4 ⊢ (6 + 4) = ;10 | |
| 16 | 13, 14, 15 | addcomli 11474 | . . 3 ⊢ (4 + 6) = ;10 |
| 17 | 8, 12, 16 | 3eqtr3i 2791 | . 2 ⊢ ((4 + 1)C3) = ;10 |
| 18 | 2, 17 | eqtri 2783 | 1 ⊢ (5C3) = ;10 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ∈ wcel 2145 (class class class)co 7408 0cc0 11172 1c1 11173 + caddc 11175 − cmin 11513 2c2 12367 3c3 12368 4c4 12369 5c5 12370 6c6 12371 ℕ0cn0 12576 ℤcz 12663 ;cdc 12784 Ccbc 14414 |
| 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 2732 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7734 ax-cnex 11228 ax-resscn 11229 ax-1cn 11230 ax-icn 11231 ax-addcl 11232 ax-addrcl 11233 ax-mulcl 11234 ax-mulrcl 11235 ax-mulcom 11236 ax-addass 11237 ax-mulass 11238 ax-distr 11239 ax-i2m1 11240 ax-1ne0 11241 ax-1rid 11242 ax-rnegex 11243 ax-rrecex 11244 ax-cnre 11245 ax-pre-lttri 11246 ax-pre-lttrn 11247 ax-pre-ltadd 11248 ax-pre-mulgt0 11249 |
| 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 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-dif 3901 df-un 3903 df-in 3905 df-ss 3915 df-pss 3918 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5542 df-eprel 5547 df-po 5555 df-so 5556 df-fr 5600 df-we 5602 df-xp 5653 df-rel 5654 df-cnv 5655 df-co 5656 df-dm 5657 df-rn 5658 df-res 5659 df-ima 5660 df-pred 6293 df-ord 6354 df-on 6355 df-lim 6356 df-suc 6357 df-iota 6483 df-fun 6529 df-fn 6530 df-f 6531 df-f1 6532 df-fo 6533 df-f1o 6534 df-fv 6535 df-riota 7365 df-ov 7411 df-oprab 7412 df-mpo 7413 df-om 7861 df-1st 7984 df-2nd 7985 df-frecs 8277 df-wrecs 8308 df-recs 8357 df-rdg 8396 df-er 8695 df-en 8952 df-dom 8953 df-sdom 8954 df-pnf 11317 df-mnf 11318 df-xr 11319 df-ltxr 11320 df-le 11321 df-sub 11515 df-neg 11516 df-div 11944 df-nn 12306 df-2 12375 df-3 12376 df-4 12377 df-5 12378 df-6 12379 df-7 12380 df-8 12381 df-9 12382 df-n0 12577 df-z 12664 df-dec 12785 df-uz 12936 df-rp 13091 df-fz 13610 df-seq 14114 df-fac 14386 df-bc 14415 |
| This theorem is used by: (None) |
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