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Mirrors > Home > MPE Home > Th. List > max2 | Structured version Visualization version GIF version |
Description: A number is less than or equal to the maximum of it and another. (Contributed by NM, 3-Apr-2005.) |
Ref | Expression |
---|---|
max2 | ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → 𝐵 ≤ if(𝐴 ≤ 𝐵, 𝐵, 𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rexr 10687 | . 2 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℝ*) | |
2 | rexr 10687 | . 2 ⊢ (𝐵 ∈ ℝ → 𝐵 ∈ ℝ*) | |
3 | xrmax2 12570 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → 𝐵 ≤ if(𝐴 ≤ 𝐵, 𝐵, 𝐴)) | |
4 | 1, 2, 3 | syl2an 597 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → 𝐵 ≤ if(𝐴 ≤ 𝐵, 𝐵, 𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 ∈ wcel 2114 ifcif 4467 class class class wbr 5066 ℝcr 10536 ℝ*cxr 10674 ≤ cle 10676 |
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 2793 ax-sep 5203 ax-nul 5210 ax-pow 5266 ax-pr 5330 ax-un 7461 ax-cnex 10593 ax-resscn 10594 ax-pre-lttri 10611 ax-pre-lttrn 10612 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ne 3017 df-nel 3124 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3773 df-csb 3884 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-pw 4541 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-br 5067 df-opab 5129 df-mpt 5147 df-id 5460 df-po 5474 df-so 5475 df-xp 5561 df-rel 5562 df-cnv 5563 df-co 5564 df-dm 5565 df-rn 5566 df-res 5567 df-ima 5568 df-iota 6314 df-fun 6357 df-fn 6358 df-f 6359 df-f1 6360 df-fo 6361 df-f1o 6362 df-fv 6363 df-er 8289 df-en 8510 df-dom 8511 df-sdom 8512 df-pnf 10677 df-mnf 10678 df-xr 10679 df-ltxr 10680 df-le 10681 |
This theorem is referenced by: lemaxle 12589 z2ge 12592 ssfzunsnext 12953 uzsup 13232 expmulnbnd 13597 discr1 13601 rexuzre 14712 caubnd 14718 limsupgre 14838 limsupbnd2 14840 rlim3 14855 lo1bdd2 14881 o1lo1 14894 rlimclim1 14902 lo1mul 14984 rlimno1 15010 cvgrat 15239 ruclem10 15592 bitsfzo 15784 1arith 16263 evth 23563 ioombl1lem4 24162 itg2monolem3 24353 itgle 24410 ibladdlem 24420 plyaddlem1 24803 coeaddlem 24839 o1cxp 25552 cxp2lim 25554 cxploglim2 25556 ftalem1 25650 ftalem2 25651 chtppilim 26051 dchrisumlem3 26067 ostth2lem2 26210 ostth2lem3 26211 ostth2lem4 26212 ostth3 26214 knoppndvlem18 33868 ibladdnclem 34963 ftc1anclem5 34986 irrapxlem4 39442 irrapxlem5 39443 rexabslelem 41712 uzublem 41724 max2d 41754 climsuse 41909 limsupubuzlem 42013 limsupmnfuzlem 42027 limsupequzmptlem 42029 limsupre3uzlem 42036 liminflelimsuplem 42076 ioodvbdlimc1lem2 42237 ioodvbdlimc2lem 42239 hoidifhspdmvle 42922 |
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