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 12410 | . 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 2110 (class class class)co 7150 / cdiv 11291 2c2 11686 ℝ+crp 12383 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5195 ax-nul 5202 ax-pow 5258 ax-pr 5321 ax-un 7455 ax-resscn 10588 ax-1cn 10589 ax-icn 10590 ax-addcl 10591 ax-addrcl 10592 ax-mulcl 10593 ax-mulrcl 10594 ax-mulcom 10595 ax-addass 10596 ax-mulass 10597 ax-distr 10598 ax-i2m1 10599 ax-1ne0 10600 ax-1rid 10601 ax-rnegex 10602 ax-rrecex 10603 ax-cnre 10604 ax-pre-lttri 10605 ax-pre-lttrn 10606 ax-pre-ltadd 10607 ax-pre-mulgt0 10608 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 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-reu 3145 df-rmo 3146 df-rab 3147 df-v 3496 df-sbc 3772 df-csb 3883 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-pw 4540 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-br 5059 df-opab 5121 df-mpt 5139 df-id 5454 df-po 5468 df-so 5469 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-rn 5560 df-res 5561 df-ima 5562 df-iota 6308 df-fun 6351 df-fn 6352 df-f 6353 df-f1 6354 df-fo 6355 df-f1o 6356 df-fv 6357 df-riota 7108 df-ov 7153 df-oprab 7154 df-mpo 7155 df-er 8283 df-en 8504 df-dom 8505 df-sdom 8506 df-pnf 10671 df-mnf 10672 df-xr 10673 df-ltxr 10674 df-le 10675 df-sub 10866 df-neg 10867 df-div 11292 df-2 11694 df-rp 12384 |
This theorem is referenced by: nnesq 13582 rlimuni 14901 climuni 14903 reccn2 14947 iseralt 15035 mertenslem1 15234 mertenslem2 15235 ege2le3 15437 rpcoshcl 15504 sqrt2irrlem 15595 4sqlem7 16274 ssblex 23032 methaus 23124 met2ndci 23126 metustexhalf 23160 cfilucfil 23163 nlmvscnlem2 23288 nlmvscnlem1 23289 nrginvrcnlem 23294 reperflem 23420 icccmplem2 23425 metdcnlem 23438 metnrmlem2 23462 metnrmlem3 23463 ipcnlem2 23841 ipcnlem1 23842 minveclem3 24026 ovollb2lem 24083 ovolunlem2 24093 uniioombl 24184 itg2cnlem2 24357 itg2cn 24358 lhop1lem 24604 lhop1 24605 aaliou2b 24924 ulmcn 24981 pserdvlem1 25009 pserdv 25011 cxpcn3lem 25322 lgamgulmlem3 25602 lgamucov 25609 ftalem2 25645 bposlem7 25860 bposlem9 25862 lgsquadlem2 25951 chebbnd1lem2 26040 pntibndlem3 26162 pntibnd 26163 pntlemr 26172 lt2addrd 30469 tpr2rico 31150 knoppndvlem17 33862 tan2h 34878 mblfinlem4 34926 sstotbnd2 35046 dstregt0 41540 suplesup 41600 infleinf 41633 lptre2pt 41914 0ellimcdiv 41923 limsupgtlem 42051 ioodvbdlimc1lem2 42210 ioodvbdlimc2lem 42212 stoweidlem62 42341 stirlinglem1 42353 |
Copyright terms: Public domain | W3C validator |