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Mirrors > Home > ILE Home > Th. List > eucalglt | Unicode version |
Description: The second member of the state decreases with each iteration of the step function for Euclid's Algorithm. (Contributed by Paul Chapman, 31-Mar-2011.) (Revised by Mario Carneiro, 29-May-2014.) |
Ref | Expression |
---|---|
eucalgval.1 |
Ref | Expression |
---|---|
eucalglt |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eucalgval.1 | . . . . . . . 8 | |
2 | 1 | eucalgval 11662 | . . . . . . 7 |
3 | 2 | adantr 274 | . . . . . 6 |
4 | simpr 109 | . . . . . . . 8 | |
5 | iftrue 3449 | . . . . . . . . . . . . 13 | |
6 | 5 | eqeq2d 2129 | . . . . . . . . . . . 12 |
7 | fveq2 5389 | . . . . . . . . . . . 12 | |
8 | 6, 7 | syl6bi 162 | . . . . . . . . . . 11 |
9 | eqeq2 2127 | . . . . . . . . . . 11 | |
10 | 8, 9 | sylibd 148 | . . . . . . . . . 10 |
11 | 3, 10 | syl5com 29 | . . . . . . . . 9 |
12 | 11 | necon3ad 2327 | . . . . . . . 8 |
13 | 4, 12 | mpd 13 | . . . . . . 7 |
14 | 13 | iffalsed 3454 | . . . . . 6 |
15 | 3, 14 | eqtrd 2150 | . . . . 5 |
16 | 15 | fveq2d 5393 | . . . 4 |
17 | xp2nd 6032 | . . . . . 6 | |
18 | 17 | adantr 274 | . . . . 5 |
19 | 1st2nd2 6041 | . . . . . . . . 9 | |
20 | 19 | adantr 274 | . . . . . . . 8 |
21 | 20 | fveq2d 5393 | . . . . . . 7 |
22 | df-ov 5745 | . . . . . . 7 | |
23 | 21, 22 | syl6eqr 2168 | . . . . . 6 |
24 | xp1st 6031 | . . . . . . . . 9 | |
25 | 24 | adantr 274 | . . . . . . . 8 |
26 | 25 | nn0zd 9139 | . . . . . . 7 |
27 | 13 | neqned 2292 | . . . . . . . 8 |
28 | elnnne0 8959 | . . . . . . . 8 | |
29 | 18, 27, 28 | sylanbrc 413 | . . . . . . 7 |
30 | 26, 29 | zmodcld 10086 | . . . . . 6 |
31 | 23, 30 | eqeltrd 2194 | . . . . 5 |
32 | op2ndg 6017 | . . . . 5 | |
33 | 18, 31, 32 | syl2anc 408 | . . . 4 |
34 | 16, 33, 23 | 3eqtrd 2154 | . . 3 |
35 | zq 9386 | . . . . 5 | |
36 | 26, 35 | syl 14 | . . . 4 |
37 | 18 | nn0zd 9139 | . . . . 5 |
38 | zq 9386 | . . . . 5 | |
39 | 37, 38 | syl 14 | . . . 4 |
40 | 29 | nngt0d 8732 | . . . 4 |
41 | modqlt 10074 | . . . 4 | |
42 | 36, 39, 40, 41 | syl3anc 1201 | . . 3 |
43 | 34, 42 | eqbrtrd 3920 | . 2 |
44 | 43 | ex 114 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wceq 1316 wcel 1465 wne 2285 cif 3444 cop 3500 class class class wbr 3899 cxp 4507 cfv 5093 (class class class)co 5742 cmpo 5744 c1st 6004 c2nd 6005 cc0 7588 clt 7768 cn 8688 cn0 8945 cz 9022 cq 9379 cmo 10063 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 588 ax-in2 589 ax-io 683 ax-5 1408 ax-7 1409 ax-gen 1410 ax-ie1 1454 ax-ie2 1455 ax-8 1467 ax-10 1468 ax-11 1469 ax-i12 1470 ax-bndl 1471 ax-4 1472 ax-13 1476 ax-14 1477 ax-17 1491 ax-i9 1495 ax-ial 1499 ax-i5r 1500 ax-ext 2099 ax-sep 4016 ax-pow 4068 ax-pr 4101 ax-un 4325 ax-setind 4422 ax-cnex 7679 ax-resscn 7680 ax-1cn 7681 ax-1re 7682 ax-icn 7683 ax-addcl 7684 ax-addrcl 7685 ax-mulcl 7686 ax-mulrcl 7687 ax-addcom 7688 ax-mulcom 7689 ax-addass 7690 ax-mulass 7691 ax-distr 7692 ax-i2m1 7693 ax-0lt1 7694 ax-1rid 7695 ax-0id 7696 ax-rnegex 7697 ax-precex 7698 ax-cnre 7699 ax-pre-ltirr 7700 ax-pre-ltwlin 7701 ax-pre-lttrn 7702 ax-pre-apti 7703 ax-pre-ltadd 7704 ax-pre-mulgt0 7705 ax-pre-mulext 7706 ax-arch 7707 |
This theorem depends on definitions: df-bi 116 df-dc 805 df-3or 948 df-3an 949 df-tru 1319 df-fal 1322 df-nf 1422 df-sb 1721 df-eu 1980 df-mo 1981 df-clab 2104 df-cleq 2110 df-clel 2113 df-nfc 2247 df-ne 2286 df-nel 2381 df-ral 2398 df-rex 2399 df-reu 2400 df-rmo 2401 df-rab 2402 df-v 2662 df-sbc 2883 df-csb 2976 df-dif 3043 df-un 3045 df-in 3047 df-ss 3054 df-nul 3334 df-if 3445 df-pw 3482 df-sn 3503 df-pr 3504 df-op 3506 df-uni 3707 df-int 3742 df-iun 3785 df-br 3900 df-opab 3960 df-mpt 3961 df-id 4185 df-po 4188 df-iso 4189 df-xp 4515 df-rel 4516 df-cnv 4517 df-co 4518 df-dm 4519 df-rn 4520 df-res 4521 df-ima 4522 df-iota 5058 df-fun 5095 df-fn 5096 df-f 5097 df-fv 5101 df-riota 5698 df-ov 5745 df-oprab 5746 df-mpo 5747 df-1st 6006 df-2nd 6007 df-pnf 7770 df-mnf 7771 df-xr 7772 df-ltxr 7773 df-le 7774 df-sub 7903 df-neg 7904 df-reap 8305 df-ap 8312 df-div 8401 df-inn 8689 df-n0 8946 df-z 9023 df-q 9380 df-rp 9410 df-fl 10011 df-mod 10064 |
This theorem is referenced by: eucalgcvga 11666 |
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