| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > znnen | Unicode version | ||
| Description: The set of integers and the set of positive integers are equinumerous. Corollary 8.1.23 of [AczelRathjen], p. 75. (Contributed by NM, 31-Jul-2004.) |
| Ref | Expression |
|---|---|
| znnen |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | unrab 3504 |
. . 3
| |
| 2 | nnssz 9672 |
. . . . . 6
| |
| 3 | dfss1 3435 |
. . . . . 6
| |
| 4 | 2, 3 | mpbi 145 |
. . . . 5
|
| 5 | dfin5 3227 |
. . . . 5
| |
| 6 | 4, 5 | eqtr3i 2261 |
. . . 4
|
| 7 | 6 | uneq1i 3379 |
. . 3
|
| 8 | rabid2 2729 |
. . . 4
| |
| 9 | elznn 9671 |
. . . . 5
| |
| 10 | 9 | simprbi 275 |
. . . 4
|
| 11 | 8, 10 | mprgbir 2608 |
. . 3
|
| 12 | 1, 7, 11 | 3eqtr4ri 2270 |
. 2
|
| 13 | nnex 9319 |
. . . 4
| |
| 14 | 13 | enref 7055 |
. . 3
|
| 15 | zex 9664 |
. . . . . 6
| |
| 16 | 15 | rabex 4282 |
. . . . 5
|
| 17 | nn0ex 9580 |
. . . . 5
| |
| 18 | negeq 8526 |
. . . . . . . 8
| |
| 19 | 18 | eleq1d 2307 |
. . . . . . 7
|
| 20 | 19 | elrab 2982 |
. . . . . 6
|
| 21 | 20 | simprbi 275 |
. . . . 5
|
| 22 | negeq 8526 |
. . . . . . 7
| |
| 23 | 22 | eleq1d 2307 |
. . . . . 6
|
| 24 | nn0negz 9689 |
. . . . . 6
| |
| 25 | nn0cn 9584 |
. . . . . . . . 9
| |
| 26 | 25 | negnegd 8635 |
. . . . . . . 8
|
| 27 | 26 | eleq1d 2307 |
. . . . . . 7
|
| 28 | 27 | ibir 177 |
. . . . . 6
|
| 29 | 23, 24, 28 | elrabd 2984 |
. . . . 5
|
| 30 | elrabi 2979 |
. . . . . . . 8
| |
| 31 | 30 | adantr 276 |
. . . . . . 7
|
| 32 | 31 | zcnd 9780 |
. . . . . 6
|
| 33 | 25 | adantl 277 |
. . . . . 6
|
| 34 | negcon2 8586 |
. . . . . 6
| |
| 35 | 32, 33, 34 | syl2anc 415 |
. . . . 5
|
| 36 | 16, 17, 21, 29, 35 | en3i 7061 |
. . . 4
|
| 37 | nn0ennn 10891 |
. . . 4
| |
| 38 | 36, 37 | entri 7077 |
. . 3
|
| 39 | inrab2 3506 |
. . . 4
| |
| 40 | incom 3421 |
. . . 4
| |
| 41 | rabeq0 3552 |
. . . . 5
| |
| 42 | 0red 8333 |
. . . . . . . 8
| |
| 43 | simpl 109 |
. . . . . . . . 9
| |
| 44 | 43 | nnred 9326 |
. . . . . . . 8
|
| 45 | nngt0 9338 |
. . . . . . . . 9
| |
| 46 | 45 | adantr 276 |
. . . . . . . 8
|
| 47 | nn0ge0 9599 |
. . . . . . . . . 10
| |
| 48 | 47 | adantl 277 |
. . . . . . . . 9
|
| 49 | 44 | le0neg1d 8852 |
. . . . . . . . 9
|
| 50 | 48, 49 | mpbird 167 |
. . . . . . . 8
|
| 51 | 42, 44, 42, 46, 50 | ltletrd 8758 |
. . . . . . 7
|
| 52 | 42 | ltnrd 8444 |
. . . . . . 7
|
| 53 | 51, 52 | pm2.65da 671 |
. . . . . 6
|
| 54 | 53, 4 | eleq2s 2333 |
. . . . 5
|
| 55 | 41, 54 | mprgbir 2608 |
. . . 4
|
| 56 | 39, 40, 55 | 3eqtr3i 2267 |
. . 3
|
| 57 | unennn 13346 |
. . 3
| |
| 58 | 14, 38, 56, 57 | mp3an 1378 |
. 2
|
| 59 | 12, 58 | eqbrtri 4152 |
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-mulrcl 8284 ax-addcom 8285 ax-mulcom 8286 ax-addass 8287 ax-mulass 8288 ax-distr 8289 ax-i2m1 8290 ax-0lt1 8291 ax-1rid 8292 ax-0id 8293 ax-rnegex 8294 ax-precex 8295 ax-cnre 8296 ax-pre-ltirr 8297 ax-pre-ltwlin 8298 ax-pre-lttrn 8299 ax-pre-apti 8300 ax-pre-ltadd 8301 ax-pre-mulgt0 8302 ax-pre-mulext 8303 ax-arch 8304 |
| This proof depends on definitions: df-bi 117 df-dc 847 df-3or 1010 df-3an 1011 df-tru 1405 df-fal 1408 df-xor 1425 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-rmo 2536 df-rab 2537 df-v 2823 df-sbc 3052 df-csb 3148 df-dif 3222 df-un 3224 df-in 3226 df-ss 3233 df-nul 3521 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-int 3971 df-iun 4014 df-br 4132 df-opab 4194 df-mpt 4195 df-id 4440 df-po 4443 df-iso 4444 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-rn 4787 df-res 4788 df-ima 4789 df-iota 5340 df-fun 5382 df-fn 5383 df-f 5384 df-f1 5385 df-fo 5386 df-f1o 5387 df-fv 5388 df-riota 6041 df-ov 6091 df-oprab 6092 df-mpo 6093 df-1st 6378 df-2nd 6379 df-er 6811 df-en 7027 df-pnf 8368 df-mnf 8369 df-xr 8370 df-ltxr 8371 df-le 8372 df-sub 8506 df-neg 8507 df-reap 8911 df-ap 8918 df-div 9011 df-inn 9314 df-2 9372 df-n0 9575 df-z 9656 df-q 10036 df-rp 10072 df-fl 10722 df-mod 10781 df-dvds 12580 |
| This theorem is used by: qnnen 13380 |
| Copyright terms: Public domain | W3C validator |