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| Mirrors > Home > ILE Home > Th. List > lenlt | Unicode version | ||
| Description: 'Less than or equal to' expressed in terms of 'less than'. Part of definition 11.2.7(vi) of [HoTT], p. (varies). (Contributed by NM, 13-May-1999.) |
| Ref | Expression |
|---|---|
| lenlt |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rexr 8225 |
. 2
| |
| 2 | rexr 8225 |
. 2
| |
| 3 | xrlenlt 8244 |
. 2
| |
| 4 | 1, 2, 3 | syl2an 289 |
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-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 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-ral 2515 df-rex 2516 df-v 2804 df-dif 3202 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-br 4089 df-opab 4151 df-xp 4731 df-cnv 4733 df-xr 8218 df-le 8220 |
| This theorem is referenced by: letri3 8260 ltleletr 8261 letr 8262 leid 8263 eqlelt 8266 ltle 8267 lelttr 8268 ltletr 8269 lenlti 8280 lenltd 8297 lemul1 8773 msqge0 8796 mulge0 8799 ltleap 8812 recgt0 9030 lediv1 9049 dfinfre 9136 nnge1 9166 nnnlt1 9169 avgle1 9385 avgle2 9386 nn0nlt0 9428 zltnle 9525 zleloe 9526 zdcle 9556 recnz 9573 btwnnz 9574 prime 9579 fznlem 10276 nelfzo 10387 fzonlt0 10404 qltnle 10504 bcval4 11015 ccatsymb 11183 swrd0g 11245 resqrexlemgt0 11585 climge0 11890 infpnlem1 12937 efle 15506 logleb 15605 cxple 15647 cxple3 15651 lgsval2lem 15745 lgsneg 15759 lgsdilem 15762 gausslemma2dlem1a 15793 gausslemma2dlem3 15798 supfz 16701 inffz 16702 |
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