| Mathbox for Jim Kingdon |
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| Mirrors > Home > ILE Home > Th. List > Mathboxes > nnti | Unicode version | ||
| Description: Ordering on a natural number generates a tight apartness. (Contributed by Jim Kingdon, 7-Aug-2022.) |
| Ref | Expression |
|---|---|
| nnti.a |
|
| Ref | Expression |
|---|---|
| nnti |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | simprl 529 |
. . . 4
| |
| 2 | nnti.a |
. . . . 5
| |
| 3 | 2 | adantr 276 |
. . . 4
|
| 4 | elnn 4642 |
. . . 4
| |
| 5 | 1, 3, 4 | syl2anc 411 |
. . 3
|
| 6 | simprr 531 |
. . . 4
| |
| 7 | elnn 4642 |
. . . 4
| |
| 8 | 6, 3, 7 | syl2anc 411 |
. . 3
|
| 9 | nntri3 6555 |
. . 3
| |
| 10 | 5, 8, 9 | syl2anc 411 |
. 2
|
| 11 | epel 4327 |
. . . 4
| |
| 12 | 11 | notbii 669 |
. . 3
|
| 13 | epel 4327 |
. . . 4
| |
| 14 | 13 | notbii 669 |
. . 3
|
| 15 | 12, 14 | anbi12i 460 |
. 2
|
| 16 | 10, 15 | bitr4di 198 |
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 615 ax-in2 616 ax-io 710 ax-5 1461 ax-7 1462 ax-gen 1463 ax-ie1 1507 ax-ie2 1508 ax-8 1518 ax-10 1519 ax-11 1520 ax-i12 1521 ax-bndl 1523 ax-4 1524 ax-17 1540 ax-i9 1544 ax-ial 1548 ax-i5r 1549 ax-13 2169 ax-14 2170 ax-ext 2178 ax-sep 4151 ax-nul 4159 ax-pow 4207 ax-pr 4242 ax-un 4468 ax-setind 4573 ax-iinf 4624 |
| This theorem depends on definitions: df-bi 117 df-3or 981 df-3an 982 df-tru 1367 df-nf 1475 df-sb 1777 df-eu 2048 df-mo 2049 df-clab 2183 df-cleq 2189 df-clel 2192 df-nfc 2328 df-ne 2368 df-ral 2480 df-rex 2481 df-v 2765 df-dif 3159 df-un 3161 df-in 3163 df-ss 3170 df-nul 3451 df-pw 3607 df-sn 3628 df-pr 3629 df-op 3631 df-uni 3840 df-int 3875 df-br 4034 df-opab 4095 df-tr 4132 df-eprel 4324 df-iord 4401 df-on 4403 df-suc 4406 df-iom 4627 |
| This theorem is referenced by: (None) |
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