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| Mirrors > Home > MPE Home > Th. List > ex-bc | Structured version Visualization version GIF version | ||
| Description: Example for df-bc 14230. (Contributed by AV, 4-Sep-2021.) |
| Ref | Expression |
|---|---|
| ex-bc | ⊢ (5C3) = ;10 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-5 12215 | . . 3 ⊢ 5 = (4 + 1) | |
| 2 | 1 | oveq1i 7370 | . 2 ⊢ (5C3) = ((4 + 1)C3) |
| 3 | 4bc3eq4 14255 | . . . 4 ⊢ (4C3) = 4 | |
| 4 | 3m1e2 12272 | . . . . . 6 ⊢ (3 − 1) = 2 | |
| 5 | 4 | oveq2i 7371 | . . . . 5 ⊢ (4C(3 − 1)) = (4C2) |
| 6 | 4bc2eq6 14256 | . . . . 5 ⊢ (4C2) = 6 | |
| 7 | 5, 6 | eqtri 2760 | . . . 4 ⊢ (4C(3 − 1)) = 6 |
| 8 | 3, 7 | oveq12i 7372 | . . 3 ⊢ ((4C3) + (4C(3 − 1))) = (4 + 6) |
| 9 | 4nn0 12424 | . . . 4 ⊢ 4 ∈ ℕ0 | |
| 10 | 3z 12528 | . . . 4 ⊢ 3 ∈ ℤ | |
| 11 | bcpasc 14248 | . . . 4 ⊢ ((4 ∈ ℕ0 ∧ 3 ∈ ℤ) → ((4C3) + (4C(3 − 1))) = ((4 + 1)C3)) | |
| 12 | 9, 10, 11 | mp2an 693 | . . 3 ⊢ ((4C3) + (4C(3 − 1))) = ((4 + 1)C3) |
| 13 | 6cn 12240 | . . . 4 ⊢ 6 ∈ ℂ | |
| 14 | 4cn 12234 | . . . 4 ⊢ 4 ∈ ℂ | |
| 15 | 6p4e10 12683 | . . . 4 ⊢ (6 + 4) = ;10 | |
| 16 | 13, 14, 15 | addcomli 11329 | . . 3 ⊢ (4 + 6) = ;10 |
| 17 | 8, 12, 16 | 3eqtr3i 2768 | . 2 ⊢ ((4 + 1)C3) = ;10 |
| 18 | 2, 17 | eqtri 2760 | 1 ⊢ (5C3) = ;10 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 ∈ wcel 2114 (class class class)co 7360 0cc0 11030 1c1 11031 + caddc 11033 − cmin 11368 2c2 12204 3c3 12205 4c4 12206 5c5 12207 6c6 12208 ℕ0cn0 12405 ℤcz 12492 ;cdc 12611 Ccbc 14229 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5242 ax-nul 5252 ax-pow 5311 ax-pr 5378 ax-un 7682 ax-cnex 11086 ax-resscn 11087 ax-1cn 11088 ax-icn 11089 ax-addcl 11090 ax-addrcl 11091 ax-mulcl 11092 ax-mulrcl 11093 ax-mulcom 11094 ax-addass 11095 ax-mulass 11096 ax-distr 11097 ax-i2m1 11098 ax-1ne0 11099 ax-1rid 11100 ax-rnegex 11101 ax-rrecex 11102 ax-cnre 11103 ax-pre-lttri 11104 ax-pre-lttrn 11105 ax-pre-ltadd 11106 ax-pre-mulgt0 11107 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-nel 3038 df-ral 3053 df-rex 3062 df-rmo 3351 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-iun 4949 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-riota 7317 df-ov 7363 df-oprab 7364 df-mpo 7365 df-om 7811 df-1st 7935 df-2nd 7936 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-er 8637 df-en 8888 df-dom 8889 df-sdom 8890 df-pnf 11172 df-mnf 11173 df-xr 11174 df-ltxr 11175 df-le 11176 df-sub 11370 df-neg 11371 df-div 11799 df-nn 12150 df-2 12212 df-3 12213 df-4 12214 df-5 12215 df-6 12216 df-7 12217 df-8 12218 df-9 12219 df-n0 12406 df-z 12493 df-dec 12612 df-uz 12756 df-rp 12910 df-fz 13428 df-seq 13929 df-fac 14201 df-bc 14230 |
| This theorem is referenced by: (None) |
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