| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > ltle | GIF version | ||
| Description: 'Less than' implies 'less than or equal to'. (Contributed by NM, 25-Aug-1999.) |
| Ref | Expression |
|---|---|
| ltle | ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 < 𝐵 → 𝐴 ≤ 𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ltnsym 8359 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 < 𝐵 → ¬ 𝐵 < 𝐴)) | |
| 2 | lenlt 8349 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 ≤ 𝐵 ↔ ¬ 𝐵 < 𝐴)) | |
| 3 | 1, 2 | sylibrd 169 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 < 𝐵 → 𝐴 ≤ 𝐵)) |
| Colors of variables: wff set class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 104 ∈ wcel 2203 class class class wbr 4109 ℝcr 8126 < clt 8308 ≤ cle 8309 |
| 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 2205 ax-14 2206 ax-ext 2214 ax-sep 4228 ax-pow 4287 ax-pr 4322 ax-un 4554 ax-setind 4659 ax-cnex 8218 ax-resscn 8219 ax-pre-ltirr 8239 ax-pre-lttrn 8241 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2083 df-mo 2084 df-clab 2219 df-cleq 2225 df-clel 2228 df-nfc 2373 df-ne 2413 df-nel 2508 df-ral 2525 df-rex 2526 df-rab 2529 df-v 2815 df-dif 3213 df-un 3215 df-in 3217 df-ss 3224 df-pw 3671 df-sn 3695 df-pr 3696 df-op 3698 df-uni 3915 df-br 4110 df-opab 4172 df-xp 4755 df-cnv 4757 df-pnf 8310 df-mnf 8311 df-xr 8312 df-ltxr 8313 df-le 8314 |
| This theorem is referenced by: ltlei 8375 ltled 8392 ltleap 8906 lep1 9119 lem1 9121 letrp1 9122 ltmul12a 9134 bndndx 9495 nn0ge0 9521 zletric 9621 zlelttric 9622 zltnle 9623 zleloe 9624 ltsubnn0 9645 zdcle 9654 uzind 9689 fnn0ind 9694 eluz2b2 9935 rpge0 9999 zltaddlt1le 10341 difelfznle 10469 elfzouz2 10496 elfzo0le 10524 fzosplitprm1 10580 fzostep1 10583 qletric 10601 qlelttric 10602 qltnle 10603 expgt1 10939 expnlbnd2 11027 faclbnd 11103 swrdsbslen 11358 swrdspsleq 11359 pfxccat3 11426 swrdccat 11427 caucvgrelemcau 11665 resqrexlemdecn 11697 mulcn2 11997 efcllemp 12344 sin01bnd 12443 cos01bnd 12444 sin01gt0 12448 cos01gt0 12449 absef 12456 efieq1re 12458 nn0o 12593 pythagtriplem12 12973 pythagtriplem13 12974 pythagtriplem14 12975 pythagtriplem16 12977 pclemub 12985 sincosq1lem 15690 tangtx 15703 |
| Copyright terms: Public domain | W3C validator |