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| Mirrors > Home > MPE Home > Th. List > xrltled | Structured version Visualization version GIF version | ||
| Description: 'Less than' implies 'less than or equal to' for extended reals. Deduction form of xrltle 13204. (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
| Ref | Expression |
|---|---|
| xrltled.a | ⊢ (𝜑 → 𝐴 ∈ ℝ*) |
| xrltled.b | ⊢ (𝜑 → 𝐵 ∈ ℝ*) |
| xrltled.altb | ⊢ (𝜑 → 𝐴 < 𝐵) |
| Ref | Expression |
|---|---|
| xrltled | ⊢ (𝜑 → 𝐴 ≤ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xrltled.altb | . 2 ⊢ (𝜑 → 𝐴 < 𝐵) | |
| 2 | xrltled.a | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ*) | |
| 3 | xrltled.b | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℝ*) | |
| 4 | xrltle 13204 | . . 3 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → (𝐴 < 𝐵 → 𝐴 ≤ 𝐵)) | |
| 5 | 2, 3, 4 | syl2anc 596 | . 2 ⊢ (𝜑 → (𝐴 < 𝐵 → 𝐴 ≤ 𝐵)) |
| 6 | 1, 5 | mpd 16 | 1 ⊢ (𝜑 → 𝐴 ≤ 𝐵) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2145 class class class wbr 5107 ℝ*cxr 11270 < clt 11271 ≤ cle 11272 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2215 ax-ext 2734 ax-sep 5255 ax-nul 5267 ax-pow 5334 ax-pr 5402 ax-un 7740 ax-cnex 11184 ax-resscn 11185 ax-pre-lttri 11202 ax-pre-lttrn 11203 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2566 df-eu 2596 df-clab 2741 df-cleq 2754 df-clel 2837 df-nfc 2911 df-ne 2958 df-nel 3064 df-ral 3079 df-rex 3089 df-rab 3415 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4283 df-if 4486 df-pw 4562 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-br 5108 df-opab 5172 df-mpt 5191 df-id 5554 df-po 5567 df-so 5568 df-xp 5665 df-rel 5666 df-cnv 5667 df-co 5668 df-dm 5669 df-rn 5670 df-res 5671 df-ima 5672 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-er 8700 df-en 8957 df-dom 8958 df-sdom 8959 df-pnf 11273 df-mnf 11274 df-xr 11275 df-ltxr 11276 df-le 11277 |
| This theorem is used by: qextltlem 13258 ioounsn 13534 snunioc 13537 pcadd2 16988 xblss2ps 24633 xblss2 24634 blhalf 24637 blssps 24656 blss 24657 blcvx 25030 tgqioo 25032 metdcnlem 25069 ioorcl2 25806 volivth 25841 itg2monolem2 25985 itg2cnlem2 25996 dvferm1lem 26218 dvferm2lem 26220 dvferm 26222 dvivthlem1 26242 lhop2 26249 radcnvle 26663 difioo 33261 heicant 38412 ftc1anclem7 38456 supxrgere 46171 suplesup 46177 infrpge 46189 xralrple2 46192 xrralrecnnle 46220 xrralrecnnge 46227 supxrunb3 46236 unb2ltle 46251 xrpnf 46321 snunioo1 46350 iccdifprioo 46354 iccdificc 46377 lptioo1 46470 limsupub 46540 limsuppnflem 46546 limsupre3lem 46568 xlimmnfvlem1 46668 xlimpnfvlem1 46672 fourierdlem46 46988 fourierdlem74 47016 fourierdlem75 47017 ioorrnopnxrlem 47142 salexct2 47175 sge0iunmptlemre 47251 sge0rpcpnf 47257 sge0xaddlem1 47269 meaiuninc3v 47320 ovnsubaddlem1 47406 hoidmv1le 47430 hoidmvlelem5 47435 ovolval4lem1 47485 ovolval5lem1 47488 preimageiingt 47556 preimaleiinlt 47557 fsupdm 47678 finfdm 47682 iccpartleu 48336 iccpartgel 48337 |
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