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| Mirrors > Home > ILE Home > Th. List > ltrelpi | Unicode version | ||
| Description: Positive integer 'less than' is a relation on positive integers. (Contributed by NM, 8-Feb-1996.) |
| Ref | Expression |
|---|---|
| ltrelpi |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-lti 7490 |
. 2
| |
| 2 | inss2 3425 |
. 2
| |
| 3 | 1, 2 | eqsstri 3256 |
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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-tru 1398 df-nf 1507 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-v 2801 df-in 3203 df-ss 3210 df-lti 7490 |
| This theorem is referenced by: ltsonq 7581 caucvgprlemk 7848 caucvgprlem1 7862 caucvgprlem2 7863 caucvgprprlemk 7866 caucvgprprlemval 7871 caucvgprprlem1 7892 caucvgprprlem2 7893 ltrenn 8038 |
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