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Mirrors > Home > MPE Home > Th. List > lensymd | Structured version Visualization version GIF version |
Description: 'Less than or equal to' implies 'not less than'. (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
Ref | Expression |
---|---|
ltd.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
ltd.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
lensymd.3 | ⊢ (𝜑 → 𝐴 ≤ 𝐵) |
Ref | Expression |
---|---|
lensymd | ⊢ (𝜑 → ¬ 𝐵 < 𝐴) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | lensymd.3 | . 2 ⊢ (𝜑 → 𝐴 ≤ 𝐵) | |
2 | ltd.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
3 | ltd.2 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
4 | 2, 3 | lenltd 10775 | . 2 ⊢ (𝜑 → (𝐴 ≤ 𝐵 ↔ ¬ 𝐵 < 𝐴)) |
5 | 1, 4 | mpbid 235 | 1 ⊢ (𝜑 → ¬ 𝐵 < 𝐴) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∈ wcel 2111 class class class wbr 5030 ℝcr 10525 < clt 10664 ≤ cle 10665 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pr 5295 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ral 3111 df-rex 3112 df-v 3443 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-sn 4526 df-pr 4528 df-op 4532 df-br 5031 df-opab 5093 df-xp 5525 df-cnv 5527 df-xr 10668 df-le 10670 |
This theorem is referenced by: lbinf 11581 supaddc 11595 supmul1 11597 zsupss 12325 prodge0rd 12484 infmrp1 12725 fzdisj 12929 uzdisj 12975 fzouzdisj 13068 addmodlteq 13309 seqf1olem1 13405 seqf1olem2 13406 seqcoll 13818 seqcoll2 13819 ccatalpha 13938 rlimcld2 14927 rlimno1 15002 smupvallem 15822 lcmgcdlem 15940 4sqlem11 16281 ramcl2lem 16335 recld2 23419 nmoleub2lem3 23720 ivthlem3 24057 ovolicopnf 24128 dvferm1lem 24587 dvferm2lem 24589 dgrlb 24833 dgreq0 24862 aaliou3lem9 24946 radcnvle 25015 abelthlem2 25027 dvlog2lem 25243 lgsval2lem 25891 pntlem3 26193 unblimceq0lem 33958 unblimceq0 33959 mblfinlem2 35095 imo72b2 40878 climisp 42388 stoweidlem52 42694 fourierdlem10 42759 fourierdlem12 42761 fourierdlem20 42769 fourierdlem50 42798 fourierdlem54 42802 fourierdlem103 42851 fouriersw 42873 etransclem35 42911 etransc 42925 |
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