| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > ltnlei | Structured version Visualization version GIF version | ||
| Description: 'Less than' in terms of 'less than or equal to'. (Contributed by NM, 11-Jul-2005.) |
| Ref | Expression |
|---|---|
| lt.1 | ⊢ 𝐴 ∈ ℝ |
| lt.2 | ⊢ 𝐵 ∈ ℝ |
| Ref | Expression |
|---|---|
| ltnlei | ⊢ (𝐴 < 𝐵 ↔ ¬ 𝐵 ≤ 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lt.2 | . . 3 ⊢ 𝐵 ∈ ℝ | |
| 2 | lt.1 | . . 3 ⊢ 𝐴 ∈ ℝ | |
| 3 | 1, 2 | lenlti 11266 | . 2 ⊢ (𝐵 ≤ 𝐴 ↔ ¬ 𝐴 < 𝐵) |
| 4 | 3 | con2bii 357 | 1 ⊢ (𝐴 < 𝐵 ↔ ¬ 𝐵 ≤ 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 ↔ wb 206 ∈ wcel 2114 class class class wbr 5085 ℝcr 11037 < clt 11179 ≤ cle 11180 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2708 ax-sep 5231 ax-pr 5375 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2715 df-cleq 2728 df-clel 2811 df-ral 3052 df-rex 3062 df-rab 3390 df-v 3431 df-dif 3892 df-un 3894 df-in 3896 df-ss 3906 df-nul 4274 df-if 4467 df-sn 4568 df-pr 4570 df-op 4574 df-br 5086 df-opab 5148 df-xp 5637 df-cnv 5639 df-xr 11183 df-le 11185 |
| This theorem is referenced by: letrii 11271 nn0ge2m1nn 12507 0nelfz1 13497 fzpreddisj 13527 hashnn0n0nn 14353 hashge2el2dif 14442 hash3tpde 14455 divalglem5 16366 divalglem6 16367 sadcadd 16427 htpycc 24947 pco1 24982 pcohtpylem 24986 pcopt 24989 pcopt2 24990 pcoass 24991 pcorevlem 24993 vitalilem5 25579 vieta1lem2 26277 ppiltx 27140 ppiublem1 27165 chtub 27175 axlowdimlem16 29026 axlowdim 29030 lfgrnloop 29194 lfuhgr1v0e 29323 lfgrwlkprop 29754 ballotlem2 34633 subfacp1lem1 35361 subfacp1lem5 35366 bcneg1 35918 poimirlem9 37950 poimirlem16 37957 poimirlem17 37958 poimirlem19 37960 poimirlem20 37961 poimirlem22 37963 fdc 38066 pellexlem6 43262 jm2.23 43424 nprmdvdsfacm1lem2 48084 |
| Copyright terms: Public domain | W3C validator |