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Mirrors > Home > MPE Home > Th. List > xrltle | Structured version Visualization version GIF version |
Description: 'Less than' implies 'less than or equal' for extended reals. (Contributed by NM, 19-Jan-2006.) |
Ref | Expression |
---|---|
xrltle | ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴 < 𝐵 → 𝐴 ≤ 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | orc 399 | . 2 ⊢ (𝐴 < 𝐵 → (𝐴 < 𝐵 ∨ 𝐴 = 𝐵)) | |
2 | xrleloe 11853 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴 ≤ 𝐵 ↔ (𝐴 < 𝐵 ∨ 𝐴 = 𝐵))) | |
3 | 1, 2 | syl5ibr 235 | 1 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴 < 𝐵 → 𝐴 ≤ 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∨ wo 382 ∧ wa 383 = wceq 1475 ∈ wcel 1977 class class class wbr 4583 ℝ*cxr 9952 < clt 9953 ≤ cle 9954 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pow 4769 ax-pr 4833 ax-un 6847 ax-cnex 9871 ax-resscn 9872 ax-pre-lttri 9889 ax-pre-lttrn 9890 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-nel 2783 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-sbc 3403 df-csb 3500 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-pw 4110 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-opab 4644 df-mpt 4645 df-id 4953 df-po 4959 df-so 4960 df-xp 5044 df-rel 5045 df-cnv 5046 df-co 5047 df-dm 5048 df-rn 5049 df-res 5050 df-ima 5051 df-iota 5768 df-fun 5806 df-fn 5807 df-f 5808 df-f1 5809 df-fo 5810 df-f1o 5811 df-fv 5812 df-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 df-pnf 9955 df-mnf 9956 df-xr 9957 df-ltxr 9958 df-le 9959 |
This theorem is referenced by: xrletri 11860 xrletr 11865 qextltlem 11907 xmulge0 11986 supxrunb1 12021 ico0 12092 ioc0 12093 ioossicc 12130 icossicc 12131 iocssicc 12132 ioossico 12133 snunioo 12169 snunico 12170 snunioc 12171 ioopnfsup 12525 icopnfsup 12526 hashnnn0genn0 12993 pcadd2 15432 leordtval2 20826 lecldbas 20833 xblss2ps 22016 xblss2 22017 blhalf 22020 blssps 22039 blss 22040 blcls 22121 stdbdxmet 22130 stdbdmopn 22133 metcnpi3 22161 blcvx 22409 tgqioo 22411 xrsmopn 22423 metdcnlem 22447 metnrmlem1a 22469 bndth 22565 ovolgelb 23055 icombl 23139 ioorcl2 23146 ioorf 23147 ioorinv2 23149 volivth 23181 itg2seq 23315 itg2monolem2 23324 itg2cnlem2 23335 dvferm1lem 23551 dvferm2lem 23553 dvferm 23555 dvivthlem1 23575 lhop2 23582 radcnvle 23978 tanord1 24087 dvloglem 24194 iocinif 28933 difioo 28934 esumpinfsum 29466 omssubadd 29689 elicc3 31481 tan2h 32571 heicant 32614 itg2addnclem 32631 ftc1anclem7 32661 ioounsn 36814 radcnvrat 37535 xrltled 38427 ioossioc 38560 ioossioobi 38590 fouriersw 39124 iccpartleu 39966 iccpartgel 39967 iccpartnel 39976 |
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