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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 878 | . 2 ⊢ (𝐴 < 𝐵 → (𝐴 < 𝐵 ∨ 𝐴 = 𝐵)) | |
| 2 | xrleloe 13143 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴 ≤ 𝐵 ↔ (𝐴 < 𝐵 ∨ 𝐴 = 𝐵))) | |
| 3 | 1, 2 | imbitrrid 248 | 1 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴 < 𝐵 → 𝐴 ≤ 𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 399 ∨ wo 858 = wceq 1559 ∈ wcel 2141 class class class wbr 5099 ℝ*cxr 11212 < clt 11213 ≤ cle 11214 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5245 ax-nul 5255 ax-pow 5321 ax-pr 5389 ax-un 7714 ax-cnex 11126 ax-resscn 11127 ax-pre-lttri 11144 ax-pre-lttrn 11145 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-sbc 3745 df-csb 3853 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4480 df-pw 4556 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-br 5100 df-opab 5162 df-mpt 5181 df-id 5540 df-po 5553 df-so 5554 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-res 5657 df-ima 5658 df-iota 6473 df-fun 6519 df-fn 6520 df-f 6521 df-f1 6522 df-fo 6523 df-f1o 6524 df-fv 6525 df-er 8673 df-en 8924 df-dom 8925 df-sdom 8926 df-pnf 11215 df-mnf 11216 df-xr 11217 df-ltxr 11218 df-le 11219 |
| This theorem is referenced by: xrltled 13149 xrletri 13152 xrletr 13157 qextltlem 13202 xmulge0 13284 supxrunb1 13319 ico0 13392 ioc0 13393 ioossicc 13434 icossicc 13437 iocssicc 13438 ioossico 13439 snunioo 13479 snunico 13480 ioopnfsup 13871 icopnfsup 13872 hashnnn0genn0 14353 leordtval2 23252 lecldbas 23259 blcls 24546 stdbdxmet 24555 stdbdmopn 24558 metcnpi3 24586 xrsmopn 24853 metnrmlem1a 24899 bndth 25000 ovolgelb 25522 icombl 25606 ioorf 25615 ioorinv2 25617 itg2seq 25784 tanord1 26579 dvloglem 26690 iocinif 32933 esumpinfsum 34335 omssubadd 34558 elicc3 36641 tan2h 38075 heicant 38118 itg2addnclem 38134 radcnvrat 44854 ioossioc 46032 ioossioobi 46057 fouriersw 46769 iccpartnel 48008 i0oii 49505 io1ii 49506 |
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