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| Mirrors > Home > ILE Home > Th. List > nnsub | Unicode version | ||
| Description: Subtraction of positive integers. (Contributed by NM, 20-Aug-2001.) (Revised by Mario Carneiro, 16-May-2014.) |
| Ref | Expression |
|---|---|
| nnsub |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | breq2 4135 |
. . . . . 6
| |
| 2 | oveq1 6095 |
. . . . . . 7
| |
| 3 | 2 | eleq1d 2307 |
. . . . . 6
|
| 4 | 1, 3 | imbi12d 234 |
. . . . 5
|
| 5 | 4 | ralbidv 2550 |
. . . 4
|
| 6 | breq2 4135 |
. . . . . 6
| |
| 7 | oveq1 6095 |
. . . . . . 7
| |
| 8 | 7 | eleq1d 2307 |
. . . . . 6
|
| 9 | 6, 8 | imbi12d 234 |
. . . . 5
|
| 10 | 9 | ralbidv 2550 |
. . . 4
|
| 11 | breq2 4135 |
. . . . . 6
| |
| 12 | oveq1 6095 |
. . . . . . 7
| |
| 13 | 12 | eleq1d 2307 |
. . . . . 6
|
| 14 | 11, 13 | imbi12d 234 |
. . . . 5
|
| 15 | 14 | ralbidv 2550 |
. . . 4
|
| 16 | breq2 4135 |
. . . . . 6
| |
| 17 | oveq1 6095 |
. . . . . . 7
| |
| 18 | 17 | eleq1d 2307 |
. . . . . 6
|
| 19 | 16, 18 | imbi12d 234 |
. . . . 5
|
| 20 | 19 | ralbidv 2550 |
. . . 4
|
| 21 | nnnlt1 9339 |
. . . . . 6
| |
| 22 | 21 | pm2.21d 628 |
. . . . 5
|
| 23 | 22 | rgen 2603 |
. . . 4
|
| 24 | breq1 4134 |
. . . . . . 7
| |
| 25 | oveq2 6096 |
. . . . . . . 8
| |
| 26 | 25 | eleq1d 2307 |
. . . . . . 7
|
| 27 | 24, 26 | imbi12d 234 |
. . . . . 6
|
| 28 | 27 | cbvralv 2786 |
. . . . 5
|
| 29 | nncn 9321 |
. . . . . . . . . . . . 13
| |
| 30 | 29 | adantr 276 |
. . . . . . . . . . . 12
|
| 31 | ax-1cn 8278 |
. . . . . . . . . . . 12
| |
| 32 | pncan 8539 |
. . . . . . . . . . . 12
| |
| 33 | 30, 31, 32 | sylancl 417 |
. . . . . . . . . . 11
|
| 34 | simpl 109 |
. . . . . . . . . . 11
| |
| 35 | 33, 34 | eqeltrd 2315 |
. . . . . . . . . 10
|
| 36 | oveq2 6096 |
. . . . . . . . . . 11
| |
| 37 | 36 | eleq1d 2307 |
. . . . . . . . . 10
|
| 38 | 35, 37 | syl5ibrcom 157 |
. . . . . . . . 9
|
| 39 | 38 | a1dd 48 |
. . . . . . . 8
|
| 40 | 39 | a1dd 48 |
. . . . . . 7
|
| 41 | breq1 4134 |
. . . . . . . . . 10
| |
| 42 | oveq2 6096 |
. . . . . . . . . . 11
| |
| 43 | 42 | eleq1d 2307 |
. . . . . . . . . 10
|
| 44 | 41, 43 | imbi12d 234 |
. . . . . . . . 9
|
| 45 | 44 | rspcv 2925 |
. . . . . . . 8
|
| 46 | nnre 9320 |
. . . . . . . . . . 11
| |
| 47 | nnre 9320 |
. . . . . . . . . . 11
| |
| 48 | 1re 8331 |
. . . . . . . . . . . 12
| |
| 49 | ltsubadd 8767 |
. . . . . . . . . . . 12
| |
| 50 | 48, 49 | mp3an2 1366 |
. . . . . . . . . . 11
|
| 51 | 46, 47, 50 | syl2anr 290 |
. . . . . . . . . 10
|
| 52 | nncn 9321 |
. . . . . . . . . . . 12
| |
| 53 | subsub3 8565 |
. . . . . . . . . . . . 13
| |
| 54 | 31, 53 | mp3an3 1367 |
. . . . . . . . . . . 12
|
| 55 | 29, 52, 54 | syl2an 289 |
. . . . . . . . . . 11
|
| 56 | 55 | eleq1d 2307 |
. . . . . . . . . 10
|
| 57 | 51, 56 | imbi12d 234 |
. . . . . . . . 9
|
| 58 | 57 | biimpd 144 |
. . . . . . . 8
|
| 59 | 45, 58 | syl9r 73 |
. . . . . . 7
|
| 60 | nn1m1nn 9331 |
. . . . . . . 8
| |
| 61 | 60 | adantl 277 |
. . . . . . 7
|
| 62 | 40, 59, 61 | mpjaod 730 |
. . . . . 6
|
| 63 | 62 | ralrimdva 2630 |
. . . . 5
|
| 64 | 28, 63 | biimtrid 152 |
. . . 4
|
| 65 | 5, 10, 15, 20, 23, 64 | nnind 9329 |
. . 3
|
| 66 | breq1 4134 |
. . . . 5
| |
| 67 | oveq2 6096 |
. . . . . 6
| |
| 68 | 67 | eleq1d 2307 |
. . . . 5
|
| 69 | 66, 68 | imbi12d 234 |
. . . 4
|
| 70 | 69 | rspcva 2927 |
. . 3
|
| 71 | 65, 70 | sylan2 286 |
. 2
|
| 72 | nngt0 9338 |
. . 3
| |
| 73 | nnre 9320 |
. . . 4
| |
| 74 | nnre 9320 |
. . . 4
| |
| 75 | posdif 8790 |
. . . 4
| |
| 76 | 73, 74, 75 | syl2an 289 |
. . 3
|
| 77 | 72, 76 | imbitrrid 156 |
. 2
|
| 78 | 71, 77 | impbid 129 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4251 ax-pow 4313 ax-pr 4348 ax-un 4580 ax-setind 4686 ax-cnex 8276 ax-resscn 8277 ax-1cn 8278 ax-1re 8279 ax-icn 8280 ax-addcl 8281 ax-addrcl 8282 ax-mulcl 8283 ax-addcom 8285 ax-addass 8287 ax-distr 8289 ax-i2m1 8290 ax-0lt1 8291 ax-0id 8293 ax-rnegex 8294 ax-cnre 8296 ax-pre-ltirr 8297 ax-pre-ltwlin 8298 ax-pre-lttrn 8299 ax-pre-ltadd 8301 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-fal 1408 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ne 2421 df-nel 2516 df-ral 2533 df-rex 2534 df-reu 2535 df-rab 2537 df-v 2823 df-sbc 3052 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-br 4132 df-opab 4194 df-id 4440 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-iota 5340 df-fun 5382 df-fv 5388 df-riota 6041 df-ov 6091 df-oprab 6092 df-mpo 6093 df-pnf 8368 df-mnf 8369 df-xr 8370 df-ltxr 8371 df-le 8372 df-sub 8506 df-neg 8507 df-inn 9314 |
| This theorem is used by: nnsubi 9353 uz3m2nn 9989 pythagtriplem13 13084 perfectlem1 16299 |
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