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| Mirrors > Home > ILE Home > Th. List > Mathboxes > bj-nnen2lp | Unicode version | ||
| Description: A version of en2lp 4681 for natural numbers, which does not require
ax-setind 4664.
Note: using this theorem and bj-nnelirr 16849, one can remove dependency on ax-setind 4664 from nntri2 6740 and nndcel 6746; one can actually remove more dependencies from these. (Contributed by BJ, 28-Nov-2019.) (Proof modification is discouraged.) |
| Ref | Expression |
|---|---|
| bj-nnen2lp |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bj-nnelirr 16849 |
. . 3
| |
| 2 | 1 | adantl 277 |
. 2
|
| 3 | bj-nntrans 16847 |
. . . . 5
| |
| 4 | 3 | adantl 277 |
. . . 4
|
| 5 | ssel 3236 |
. . . 4
| |
| 6 | 4, 5 | syl6 33 |
. . 3
|
| 7 | 6 | impd 254 |
. 2
|
| 8 | 2, 7 | mtod 669 |
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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2207 ax-14 2208 ax-ext 2216 ax-nul 4241 ax-pr 4327 ax-un 4559 ax-bd0 16709 ax-bdor 16712 ax-bdn 16713 ax-bdal 16714 ax-bdex 16715 ax-bdeq 16716 ax-bdel 16717 ax-bdsb 16718 ax-bdsep 16780 ax-infvn 16837 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-rab 2531 df-v 2817 df-dif 3216 df-un 3218 df-in 3220 df-ss 3227 df-nul 3513 df-sn 3700 df-pr 3701 df-uni 3920 df-int 3955 df-suc 4497 df-iom 4718 df-bdc 16737 df-bj-ind 16823 |
| This theorem is referenced by: bj-peano4 16851 |
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