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Mirrors > Home > ILE Home > Th. List > binom21 | GIF version |
Description: Special case of binom2 10650 where ๐ต = 1. (Contributed by Scott Fenton, 11-May-2014.) |
Ref | Expression |
---|---|
binom21 | โข (๐ด โ โ โ ((๐ด + 1)โ2) = (((๐ดโ2) + (2 ยท ๐ด)) + 1)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ax-1cn 7922 | . . 3 โข 1 โ โ | |
2 | binom2 10650 | . . 3 โข ((๐ด โ โ โง 1 โ โ) โ ((๐ด + 1)โ2) = (((๐ดโ2) + (2 ยท (๐ด ยท 1))) + (1โ2))) | |
3 | 1, 2 | mpan2 425 | . 2 โข (๐ด โ โ โ ((๐ด + 1)โ2) = (((๐ดโ2) + (2 ยท (๐ด ยท 1))) + (1โ2))) |
4 | mulrid 7972 | . . . . 5 โข (๐ด โ โ โ (๐ด ยท 1) = ๐ด) | |
5 | 4 | oveq2d 5907 | . . . 4 โข (๐ด โ โ โ (2 ยท (๐ด ยท 1)) = (2 ยท ๐ด)) |
6 | 5 | oveq2d 5907 | . . 3 โข (๐ด โ โ โ ((๐ดโ2) + (2 ยท (๐ด ยท 1))) = ((๐ดโ2) + (2 ยท ๐ด))) |
7 | sq1 10632 | . . . 4 โข (1โ2) = 1 | |
8 | 7 | a1i 9 | . . 3 โข (๐ด โ โ โ (1โ2) = 1) |
9 | 6, 8 | oveq12d 5909 | . 2 โข (๐ด โ โ โ (((๐ดโ2) + (2 ยท (๐ด ยท 1))) + (1โ2)) = (((๐ดโ2) + (2 ยท ๐ด)) + 1)) |
10 | 3, 9 | eqtrd 2222 | 1 โข (๐ด โ โ โ ((๐ด + 1)โ2) = (((๐ดโ2) + (2 ยท ๐ด)) + 1)) |
Colors of variables: wff set class |
Syntax hints: โ wi 4 = wceq 1364 โ wcel 2160 (class class class)co 5891 โcc 7827 1c1 7830 + caddc 7832 ยท cmul 7834 2c2 8988 โcexp 10537 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-13 2162 ax-14 2163 ax-ext 2171 ax-coll 4133 ax-sep 4136 ax-nul 4144 ax-pow 4189 ax-pr 4224 ax-un 4448 ax-setind 4551 ax-iinf 4602 ax-cnex 7920 ax-resscn 7921 ax-1cn 7922 ax-1re 7923 ax-icn 7924 ax-addcl 7925 ax-addrcl 7926 ax-mulcl 7927 ax-mulrcl 7928 ax-addcom 7929 ax-mulcom 7930 ax-addass 7931 ax-mulass 7932 ax-distr 7933 ax-i2m1 7934 ax-0lt1 7935 ax-1rid 7936 ax-0id 7937 ax-rnegex 7938 ax-precex 7939 ax-cnre 7940 ax-pre-ltirr 7941 ax-pre-ltwlin 7942 ax-pre-lttrn 7943 ax-pre-apti 7944 ax-pre-ltadd 7945 ax-pre-mulgt0 7946 ax-pre-mulext 7947 |
This theorem depends on definitions: df-bi 117 df-dc 836 df-3or 981 df-3an 982 df-tru 1367 df-fal 1370 df-nf 1472 df-sb 1774 df-eu 2041 df-mo 2042 df-clab 2176 df-cleq 2182 df-clel 2185 df-nfc 2321 df-ne 2361 df-nel 2456 df-ral 2473 df-rex 2474 df-reu 2475 df-rmo 2476 df-rab 2477 df-v 2754 df-sbc 2978 df-csb 3073 df-dif 3146 df-un 3148 df-in 3150 df-ss 3157 df-nul 3438 df-if 3550 df-pw 3592 df-sn 3613 df-pr 3614 df-op 3616 df-uni 3825 df-int 3860 df-iun 3903 df-br 4019 df-opab 4080 df-mpt 4081 df-tr 4117 df-id 4308 df-po 4311 df-iso 4312 df-iord 4381 df-on 4383 df-ilim 4384 df-suc 4386 df-iom 4605 df-xp 4647 df-rel 4648 df-cnv 4649 df-co 4650 df-dm 4651 df-rn 4652 df-res 4653 df-ima 4654 df-iota 5193 df-fun 5233 df-fn 5234 df-f 5235 df-f1 5236 df-fo 5237 df-f1o 5238 df-fv 5239 df-riota 5847 df-ov 5894 df-oprab 5895 df-mpo 5896 df-1st 6159 df-2nd 6160 df-recs 6324 df-frec 6410 df-pnf 8012 df-mnf 8013 df-xr 8014 df-ltxr 8015 df-le 8016 df-sub 8148 df-neg 8149 df-reap 8550 df-ap 8557 df-div 8648 df-inn 8938 df-2 8996 df-n0 9195 df-z 9272 df-uz 9547 df-seqfrec 10464 df-exp 10538 |
This theorem is referenced by: zesq 10657 sqoddm1div8 10692 resqrexlemover 11037 2lgsoddprmlem3c 14854 ex-exp 14876 |
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