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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 10788 | . 2 ⊢ (𝜑 → (𝐴 ≤ 𝐵 ↔ ¬ 𝐵 < 𝐴)) |
5 | 1, 4 | mpbid 234 | 1 ⊢ (𝜑 → ¬ 𝐵 < 𝐴) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ∈ wcel 2114 class class class wbr 5068 ℝcr 10538 < clt 10677 ≤ cle 10678 |
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-pr 5332 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 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-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-sn 4570 df-pr 4572 df-op 4576 df-br 5069 df-opab 5131 df-xp 5563 df-cnv 5565 df-xr 10681 df-le 10683 |
This theorem is referenced by: lbinf 11596 supaddc 11610 supmul1 11612 zsupss 12340 prodge0rd 12499 infmrp1 12740 fzdisj 12937 uzdisj 12983 fzouzdisj 13076 addmodlteq 13317 seqf1olem1 13412 seqf1olem2 13413 seqcoll 13825 seqcoll2 13826 ccatalpha 13949 rlimcld2 14937 rlimno1 15012 smupvallem 15834 lcmgcdlem 15952 4sqlem11 16293 ramcl2lem 16347 recld2 23424 nmoleub2lem3 23721 ivthlem3 24056 ovolicopnf 24127 dvferm1lem 24583 dvferm2lem 24585 dgrlb 24828 dgreq0 24857 aaliou3lem9 24941 radcnvle 25010 abelthlem2 25022 dvlog2lem 25237 lgsval2lem 25885 pntlem3 26187 unblimceq0lem 33847 unblimceq0 33848 mblfinlem2 34932 imo72b2 40532 climisp 42034 stoweidlem52 42344 fourierdlem10 42409 fourierdlem12 42411 fourierdlem20 42419 fourierdlem50 42448 fourierdlem54 42452 fourierdlem103 42501 fouriersw 42523 etransclem35 42561 etransc 42575 |
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