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Mirrors > Home > MPE Home > Th. List > lenltd | Structured version Visualization version GIF version |
Description: 'Less than or equal to' in terms of 'less than'. (Contributed by Mario Carneiro, 27-May-2016.) |
Ref | Expression |
---|---|
ltd.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
ltd.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
Ref | Expression |
---|---|
lenltd | ⊢ (𝜑 → (𝐴 ≤ 𝐵 ↔ ¬ 𝐵 < 𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | ltd.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
2 | ltd.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
3 | lenlt 10721 | . 2 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → (𝐴 ≤ 𝐵 ↔ ¬ 𝐵 < 𝐴)) | |
4 | 1, 2, 3 | syl2anc 586 | 1 ⊢ (𝜑 → (𝐴 ≤ 𝐵 ↔ ¬ 𝐵 < 𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 208 ∈ wcel 2114 class class class wbr 5068 ℝcr 10538 < clt 10677 ≤ cle 10678 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-sep 5205 ax-nul 5212 ax-pr 5332 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-sn 4570 df-pr 4572 df-op 4576 df-br 5069 df-opab 5131 df-xp 5563 df-cnv 5565 df-xr 10681 df-le 10683 |
This theorem is referenced by: ltnsymd 10791 nltled 10792 lensymd 10793 leadd1 11110 leord1 11169 lediv1 11507 lemuldiv 11522 lerec 11525 le2msq 11542 suprleub 11609 infregelb 11627 suprfinzcl 12100 uzinfi 12331 rpnnen1lem5 12383 nn0disj 13026 fleqceilz 13225 modsumfzodifsn 13315 addmodlteq 13317 leexp2 13538 expnngt1 13605 hashf1 13818 swrdccatin2 14093 isercoll 15026 ruclem3 15588 sadcaddlem 15808 pcfac 16237 sylow1lem1 18725 fvmptnn04if 21459 chfacfisf 21464 chfacfisfcpmat 21465 ivthlem2 24055 ioorcl2 24175 itg1ge0a 24314 mbfi1fseqlem4 24321 itg2monolem1 24353 itg2cnlem1 24364 mdegmullem 24674 quotcan 24900 logdivle 25207 cxple 25280 gausslemma2dlem1a 25943 padicabv 26208 upgrewlkle2 27390 pthdlem1 27549 ssnnssfz 30512 smattr 31066 smatbl 31067 smatbr 31068 esumpcvgval 31339 eulerpartlems 31620 dstfrvunirn 31734 ballotlemodife 31757 erdszelem7 32446 erdszelem8 32447 unbdqndv2lem1 33850 poimirlem2 34896 poimirlem7 34901 poimirlem10 34904 poimirlem11 34905 areacirc 34989 frlmvscadiccat 39152 rencldnfilem 39424 irrapxlem1 39426 monotoddzzfi 39546 radcnvrat 40653 reclt0d 41665 reclt0 41670 sqrlearg 41836 dvnxpaek 42234 volico 42275 sublevolico 42276 fourierdlem12 42411 fourierdlem42 42441 elaa2lem 42525 iundjiun 42749 hoidmvval0 42876 hoidmv1lelem2 42881 hoidmv1lelem3 42882 hoidmvlelem4 42887 hspdifhsp 42905 volico2 42930 ovolval2lem 42932 vonioo 42971 smfconst 43033 fzopredsuc 43530 stgoldbwt 43948 nnsum3primesle9 43966 bgoldbtbndlem1 43977 ssnn0ssfz 44404 |
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