| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > lt2sqd | Structured version Visualization version GIF version | ||
| Description: The square function on nonnegative reals is strictly monotonic. (Contributed by Mario Carneiro, 28-May-2016.) |
| Ref | Expression |
|---|---|
| sqgt0d.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| lt2sqd.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
| lt2sqd.3 | ⊢ (𝜑 → 0 ≤ 𝐴) |
| lt2sqd.4 | ⊢ (𝜑 → 0 ≤ 𝐵) |
| Ref | Expression |
|---|---|
| lt2sqd | ⊢ (𝜑 → (𝐴 < 𝐵 ↔ (𝐴↑2) < (𝐵↑2))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sqgt0d.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
| 2 | lt2sqd.3 | . 2 ⊢ (𝜑 → 0 ≤ 𝐴) | |
| 3 | lt2sqd.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
| 4 | lt2sqd.4 | . 2 ⊢ (𝜑 → 0 ≤ 𝐵) | |
| 5 | lt2sq 14040 | . 2 ⊢ (((𝐴 ∈ ℝ ∧ 0 ≤ 𝐴) ∧ (𝐵 ∈ ℝ ∧ 0 ≤ 𝐵)) → (𝐴 < 𝐵 ↔ (𝐴↑2) < (𝐵↑2))) | |
| 6 | 1, 2, 3, 4, 5 | syl22anc 838 | 1 ⊢ (𝜑 → (𝐴 < 𝐵 ↔ (𝐴↑2) < (𝐵↑2))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∈ wcel 2109 class class class wbr 5092 (class class class)co 7349 ℝcr 11008 0cc0 11009 < clt 11149 ≤ cle 11150 2c2 12183 ↑cexp 13968 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5235 ax-nul 5245 ax-pow 5304 ax-pr 5371 ax-un 7671 ax-cnex 11065 ax-resscn 11066 ax-1cn 11067 ax-icn 11068 ax-addcl 11069 ax-addrcl 11070 ax-mulcl 11071 ax-mulrcl 11072 ax-mulcom 11073 ax-addass 11074 ax-mulass 11075 ax-distr 11076 ax-i2m1 11077 ax-1ne0 11078 ax-1rid 11079 ax-rnegex 11080 ax-rrecex 11081 ax-cnre 11082 ax-pre-lttri 11083 ax-pre-lttrn 11084 ax-pre-ltadd 11085 ax-pre-mulgt0 11086 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-reu 3344 df-rab 3395 df-v 3438 df-sbc 3743 df-csb 3852 df-dif 3906 df-un 3908 df-in 3910 df-ss 3920 df-pss 3923 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4859 df-iun 4943 df-br 5093 df-opab 5155 df-mpt 5174 df-tr 5200 df-id 5514 df-eprel 5519 df-po 5527 df-so 5528 df-fr 5572 df-we 5574 df-xp 5625 df-rel 5626 df-cnv 5627 df-co 5628 df-dm 5629 df-rn 5630 df-res 5631 df-ima 5632 df-pred 6249 df-ord 6310 df-on 6311 df-lim 6312 df-suc 6313 df-iota 6438 df-fun 6484 df-fn 6485 df-f 6486 df-f1 6487 df-fo 6488 df-f1o 6489 df-fv 6490 df-riota 7306 df-ov 7352 df-oprab 7353 df-mpo 7354 df-om 7800 df-2nd 7925 df-frecs 8214 df-wrecs 8245 df-recs 8294 df-rdg 8332 df-er 8625 df-en 8873 df-dom 8874 df-sdom 8875 df-pnf 11151 df-mnf 11152 df-xr 11153 df-ltxr 11154 df-le 11155 df-sub 11349 df-neg 11350 df-nn 12129 df-2 12191 df-n0 12385 df-z 12472 df-uz 12736 df-seq 13909 df-exp 13969 |
| This theorem is referenced by: nonsq 16670 pythagtriplem10 16732 pockthg 16818 minveclem3b 25326 minveclem3 25327 minveclem4 25330 tangtx 26412 tanregt0 26446 bndatandm 26837 basellem8 26996 chpub 27129 bposlem6 27198 bposlem7 27199 2sqblem 27340 minvecolem4 30824 minvecolem5 30825 sqsscirc1 33881 areacirclem1 37698 areacirclem4 37701 areacirclem5 37702 areacirc 37703 cntotbnd 37786 rrndstprj2 37821 aks6d1c7lem1 42163 pell14qrgt0 42842 pell14qrgapw 42859 rmspecnonsq 42890 rmspecfund 42892 rmspecpos 42899 |
| Copyright terms: Public domain | W3C validator |