| 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 3478 |
. . 3
| |
| 2 | nnssz 9495 |
. . . . . 6
| |
| 3 | dfss1 3411 |
. . . . . 6
| |
| 4 | 2, 3 | mpbi 145 |
. . . . 5
|
| 5 | dfin5 3207 |
. . . . 5
| |
| 6 | 4, 5 | eqtr3i 2254 |
. . . 4
|
| 7 | 6 | uneq1i 3357 |
. . 3
|
| 8 | rabid2 2710 |
. . . 4
| |
| 9 | elznn 9494 |
. . . . 5
| |
| 10 | 9 | simprbi 275 |
. . . 4
|
| 11 | 8, 10 | mprgbir 2590 |
. . 3
|
| 12 | 1, 7, 11 | 3eqtr4ri 2263 |
. 2
|
| 13 | nnex 9148 |
. . . 4
| |
| 14 | 13 | enref 6937 |
. . 3
|
| 15 | zex 9487 |
. . . . . 6
| |
| 16 | 15 | rabex 4234 |
. . . . 5
|
| 17 | nn0ex 9407 |
. . . . 5
| |
| 18 | negeq 8371 |
. . . . . . . 8
| |
| 19 | 18 | eleq1d 2300 |
. . . . . . 7
|
| 20 | 19 | elrab 2962 |
. . . . . 6
|
| 21 | 20 | simprbi 275 |
. . . . 5
|
| 22 | negeq 8371 |
. . . . . . 7
| |
| 23 | 22 | eleq1d 2300 |
. . . . . 6
|
| 24 | nn0negz 9512 |
. . . . . 6
| |
| 25 | nn0cn 9411 |
. . . . . . . . 9
| |
| 26 | 25 | negnegd 8480 |
. . . . . . . 8
|
| 27 | 26 | eleq1d 2300 |
. . . . . . 7
|
| 28 | 27 | ibir 177 |
. . . . . 6
|
| 29 | 23, 24, 28 | elrabd 2964 |
. . . . 5
|
| 30 | elrabi 2959 |
. . . . . . . 8
| |
| 31 | 30 | adantr 276 |
. . . . . . 7
|
| 32 | 31 | zcnd 9602 |
. . . . . 6
|
| 33 | 25 | adantl 277 |
. . . . . 6
|
| 34 | negcon2 8431 |
. . . . . 6
| |
| 35 | 32, 33, 34 | syl2anc 411 |
. . . . 5
|
| 36 | 16, 17, 21, 29, 35 | en3i 6943 |
. . . 4
|
| 37 | nn0ennn 10694 |
. . . 4
| |
| 38 | 36, 37 | entri 6959 |
. . 3
|
| 39 | inrab2 3480 |
. . . 4
| |
| 40 | incom 3399 |
. . . 4
| |
| 41 | rabeq0 3524 |
. . . . 5
| |
| 42 | 0red 8179 |
. . . . . . . 8
| |
| 43 | simpl 109 |
. . . . . . . . 9
| |
| 44 | 43 | nnred 9155 |
. . . . . . . 8
|
| 45 | nngt0 9167 |
. . . . . . . . 9
| |
| 46 | 45 | adantr 276 |
. . . . . . . 8
|
| 47 | nn0ge0 9426 |
. . . . . . . . . 10
| |
| 48 | 47 | adantl 277 |
. . . . . . . . 9
|
| 49 | 44 | le0neg1d 8696 |
. . . . . . . . 9
|
| 50 | 48, 49 | mpbird 167 |
. . . . . . . 8
|
| 51 | 42, 44, 42, 46, 50 | ltletrd 8602 |
. . . . . . 7
|
| 52 | 42 | ltnrd 8290 |
. . . . . . 7
|
| 53 | 51, 52 | pm2.65da 667 |
. . . . . 6
|
| 54 | 53, 4 | eleq2s 2326 |
. . . . 5
|
| 55 | 41, 54 | mprgbir 2590 |
. . . 4
|
| 56 | 39, 40, 55 | 3eqtr3i 2260 |
. . 3
|
| 57 | unennn 13017 |
. . 3
| |
| 58 | 14, 38, 56, 57 | mp3an 1373 |
. 2
|
| 59 | 12, 58 | eqbrtri 4109 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| 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 619 ax-in2 620 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 ax-un 4530 ax-setind 4635 ax-cnex 8122 ax-resscn 8123 ax-1cn 8124 ax-1re 8125 ax-icn 8126 ax-addcl 8127 ax-addrcl 8128 ax-mulcl 8129 ax-mulrcl 8130 ax-addcom 8131 ax-mulcom 8132 ax-addass 8133 ax-mulass 8134 ax-distr 8135 ax-i2m1 8136 ax-0lt1 8137 ax-1rid 8138 ax-0id 8139 ax-rnegex 8140 ax-precex 8141 ax-cnre 8142 ax-pre-ltirr 8143 ax-pre-ltwlin 8144 ax-pre-lttrn 8145 ax-pre-apti 8146 ax-pre-ltadd 8147 ax-pre-mulgt0 8148 ax-pre-mulext 8149 ax-arch 8150 |
| This theorem depends on definitions: df-bi 117 df-dc 842 df-3or 1005 df-3an 1006 df-tru 1400 df-fal 1403 df-xor 1420 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ne 2403 df-nel 2498 df-ral 2515 df-rex 2516 df-reu 2517 df-rmo 2518 df-rab 2519 df-v 2804 df-sbc 3032 df-csb 3128 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-nul 3495 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-int 3929 df-iun 3972 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-po 4393 df-iso 4394 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-res 4737 df-ima 4738 df-iota 5286 df-fun 5328 df-fn 5329 df-f 5330 df-f1 5331 df-fo 5332 df-f1o 5333 df-fv 5334 df-riota 5970 df-ov 6020 df-oprab 6021 df-mpo 6022 df-1st 6302 df-2nd 6303 df-er 6701 df-en 6909 df-pnf 8215 df-mnf 8216 df-xr 8217 df-ltxr 8218 df-le 8219 df-sub 8351 df-neg 8352 df-reap 8754 df-ap 8761 df-div 8852 df-inn 9143 df-2 9201 df-n0 9402 df-z 9479 df-q 9853 df-rp 9888 df-fl 10529 df-mod 10584 df-dvds 12348 |
| This theorem is referenced by: qnnen 13051 |
| Copyright terms: Public domain | W3C validator |