Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > rphalfcld | Structured version Visualization version GIF version |
Description: Closure law for half of a positive real. (Contributed by Mario Carneiro, 28-May-2016.) |
Ref | Expression |
---|---|
rpred.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ+) |
Ref | Expression |
---|---|
rphalfcld | ⊢ (𝜑 → (𝐴 / 2) ∈ ℝ+) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | rpred.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ+) | |
2 | rphalfcl 12419 | . 2 ⊢ (𝐴 ∈ ℝ+ → (𝐴 / 2) ∈ ℝ+) | |
3 | 1, 2 | syl 17 | 1 ⊢ (𝜑 → (𝐴 / 2) ∈ ℝ+) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2114 (class class class)co 7158 / cdiv 11299 2c2 11695 ℝ+crp 12392 |
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 2795 ax-sep 5205 ax-nul 5212 ax-pow 5268 ax-pr 5332 ax-un 7463 ax-resscn 10596 ax-1cn 10597 ax-icn 10598 ax-addcl 10599 ax-addrcl 10600 ax-mulcl 10601 ax-mulrcl 10602 ax-mulcom 10603 ax-addass 10604 ax-mulass 10605 ax-distr 10606 ax-i2m1 10607 ax-1ne0 10608 ax-1rid 10609 ax-rnegex 10610 ax-rrecex 10611 ax-cnre 10612 ax-pre-lttri 10613 ax-pre-lttrn 10614 ax-pre-ltadd 10615 ax-pre-mulgt0 10616 |
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 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ne 3019 df-nel 3126 df-ral 3145 df-rex 3146 df-reu 3147 df-rmo 3148 df-rab 3149 df-v 3498 df-sbc 3775 df-csb 3886 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-pw 4543 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-br 5069 df-opab 5131 df-mpt 5149 df-id 5462 df-po 5476 df-so 5477 df-xp 5563 df-rel 5564 df-cnv 5565 df-co 5566 df-dm 5567 df-rn 5568 df-res 5569 df-ima 5570 df-iota 6316 df-fun 6359 df-fn 6360 df-f 6361 df-f1 6362 df-fo 6363 df-f1o 6364 df-fv 6365 df-riota 7116 df-ov 7161 df-oprab 7162 df-mpo 7163 df-er 8291 df-en 8512 df-dom 8513 df-sdom 8514 df-pnf 10679 df-mnf 10680 df-xr 10681 df-ltxr 10682 df-le 10683 df-sub 10874 df-neg 10875 df-div 11300 df-2 11703 df-rp 12393 |
This theorem is referenced by: nnesq 13591 rlimuni 14909 climuni 14911 reccn2 14955 iseralt 15043 mertenslem1 15242 mertenslem2 15243 ege2le3 15445 rpcoshcl 15512 sqrt2irrlem 15603 4sqlem7 16282 ssblex 23040 methaus 23132 met2ndci 23134 metustexhalf 23168 cfilucfil 23171 nlmvscnlem2 23296 nlmvscnlem1 23297 nrginvrcnlem 23302 reperflem 23428 icccmplem2 23433 metdcnlem 23446 metnrmlem2 23470 metnrmlem3 23471 ipcnlem2 23849 ipcnlem1 23850 minveclem3 24034 ovollb2lem 24091 ovolunlem2 24101 uniioombl 24192 itg2cnlem2 24365 itg2cn 24366 lhop1lem 24612 lhop1 24613 aaliou2b 24932 ulmcn 24989 pserdvlem1 25017 pserdv 25019 cxpcn3lem 25330 lgamgulmlem3 25610 lgamucov 25617 ftalem2 25653 bposlem7 25868 bposlem9 25870 lgsquadlem2 25959 chebbnd1lem2 26048 pntibndlem3 26170 pntibnd 26171 pntlemr 26180 lt2addrd 30477 tpr2rico 31157 knoppndvlem17 33869 tan2h 34886 mblfinlem4 34934 sstotbnd2 35054 dstregt0 41554 suplesup 41614 infleinf 41647 lptre2pt 41928 0ellimcdiv 41937 limsupgtlem 42065 ioodvbdlimc1lem2 42224 ioodvbdlimc2lem 42226 stoweidlem62 42354 stirlinglem1 42366 |
Copyright terms: Public domain | W3C validator |