| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > elnn0 | Unicode version | ||
| Description: Nonnegative integers expressed in terms of naturals and zero. (Contributed by Raph Levien, 10-Dec-2002.) |
| Ref | Expression |
|---|---|
| elnn0 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-n0 9298 |
. . 3
| |
| 2 | 1 | eleq2i 2272 |
. 2
|
| 3 | elun 3314 |
. 2
| |
| 4 | c0ex 8068 |
. . . 4
| |
| 5 | 4 | elsn2 3667 |
. . 3
|
| 6 | 5 | orbi2i 764 |
. 2
|
| 7 | 2, 3, 6 | 3bitri 206 |
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-io 711 ax-5 1470 ax-7 1471 ax-gen 1472 ax-ie1 1516 ax-ie2 1517 ax-8 1527 ax-10 1528 ax-11 1529 ax-i12 1530 ax-bndl 1532 ax-4 1533 ax-17 1549 ax-i9 1553 ax-ial 1557 ax-i5r 1558 ax-ext 2187 ax-1cn 8020 ax-icn 8022 ax-addcl 8023 ax-mulcl 8025 ax-i2m1 8032 |
| This theorem depends on definitions: df-bi 117 df-tru 1376 df-nf 1484 df-sb 1786 df-clab 2192 df-cleq 2198 df-clel 2201 df-nfc 2337 df-v 2774 df-un 3170 df-sn 3639 df-n0 9298 |
| This theorem is referenced by: 0nn0 9312 nn0ge0 9322 nnnn0addcl 9327 nnm1nn0 9338 elnnnn0b 9341 elnn0z 9387 elznn0nn 9388 elznn0 9389 elznn 9390 nn0ind-raph 9492 nn0ledivnn 9891 expp1 10693 expnegap0 10694 expcllem 10697 nn0ltexp2 10856 facp1 10877 faclbnd 10888 faclbnd3 10890 bcn1 10905 bcval5 10910 hashnncl 10942 fz1f1o 11719 arisum 11842 arisum2 11843 fprodfac 11959 ef0lem 12004 nn0enne 12246 nn0o1gt2 12249 dfgcd2 12368 mulgcd 12370 eucalgf 12410 eucalginv 12411 prmdvdsexpr 12505 rpexp1i 12509 nn0gcdsq 12555 odzdvds 12601 pceq0 12678 fldivp1 12704 pockthg 12713 1arith 12723 4sqlem17 12763 4sqlem19 12765 mulgnn0gsum 13497 mulgnn0p1 13502 mulgnn0subcl 13504 mulgneg 13509 mulgnn0z 13518 mulgnn0dir 13521 mulgnn0ass 13527 submmulg 13535 znf1o 14446 dvexp2 15217 dvply1 15270 lgsdir 15545 lgsabs1 15549 lgseisenlem1 15580 2sqlem7 15631 |
| Copyright terms: Public domain | W3C validator |