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Mirrors > Home > MPE Home > Th. List > min1 | Structured version Visualization version GIF version |
Description: The minimum of two numbers is less than or equal to the first. (Contributed by NM, 3-Aug-2007.) |
Ref | Expression |
---|---|
min1 | ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → if(𝐴 ≤ 𝐵, 𝐴, 𝐵) ≤ 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rexr 10687 | . 2 ⊢ (𝐴 ∈ ℝ → 𝐴 ∈ ℝ*) | |
2 | rexr 10687 | . 2 ⊢ (𝐵 ∈ ℝ → 𝐵 ∈ ℝ*) | |
3 | xrmin1 12571 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*) → if(𝐴 ≤ 𝐵, 𝐴, 𝐵) ≤ 𝐴) | |
4 | 1, 2, 3 | syl2an 597 | 1 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ) → if(𝐴 ≤ 𝐵, 𝐴, 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: ssfzunsnext 12953 reccn2 14953 setsstruct2 16521 ssblex 23038 nlmvscnlem1 23295 nrginvrcnlem 23300 icccmplem2 23431 xlebnum 23569 ipcnlem1 23848 ivthlem2 24053 ioombl1lem4 24162 mbfi1fseqlem5 24320 aalioulem5 24925 aalioulem6 24926 logcnlem3 25227 cxpcn3lem 25328 ftalem5 25654 chtdif 25735 ppidif 25740 chebbnd1lem1 26045 itg2addnc 34961 min1d 41768 mullimc 41917 mullimcf 41924 limcleqr 41945 addlimc 41949 0ellimcdiv 41950 limclner 41952 stoweidlem5 42310 fourierdlem103 42514 fourierdlem104 42515 ioorrnopnlem 42609 hsphoidmvle 42888 hoidmv1lelem1 42893 hoidmv1lelem2 42894 hoidmv1lelem3 42895 smfmullem1 43086 |
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