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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 11367 | . 2 ⊢ (𝜑 → (𝐴 ≤ 𝐵 ↔ ¬ 𝐵 < 𝐴)) |
| 5 | 1, 4 | mpbid 235 | 1 ⊢ (𝜑 → ¬ 𝐵 < 𝐴) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ∈ wcel 2146 class class class wbr 5111 ℝcr 11110 < clt 11254 ≤ cle 11255 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-ext 2737 ax-sep 5259 ax-pr 5406 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2744 df-cleq 2757 df-clel 2840 df-ral 3082 df-rex 3092 df-rab 3419 df-v 3459 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4287 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 df-br 5112 df-opab 5176 df-xp 5669 df-cnv 5671 df-xr 11258 df-le 11260 |
| This theorem is used by: lbinf 12179 supaddc 12193 supmul1 12195 zsupss 12973 prodge0rd 13137 infmrp1 13383 fzdisj 13592 uzdisj 13638 fzouzdisj 13737 addmodlteq 13996 seqf1olem1 14091 seqf1olem2 14092 seqcoll 14515 seqcoll2 14516 ccatalpha 14646 rlimcld2 15649 rlimno1 15725 smupvallem 16559 lcmgcdlem 16682 4sqlem11 17033 ramcl2lem 17087 psdmul 22359 recld2 25003 nmoleub2lem3 25305 ivthlem3 25643 ovolicopnf 25714 dvferm1lem 26174 dvferm2lem 26176 dgrlb 26424 dgreq0 26453 aaliou3lem9 26544 radcnvle 26614 abelthlem2 26626 dvlog2lem 26848 lgsval2lem 27502 pntlem3 27804 irredminply 34146 unblimceq0lem 37128 unblimceq0 37129 mblfinlem2 38342 imo72b2 44931 climisp 46493 stoweidlem52 46799 fourierdlem10 46864 fourierdlem12 46866 fourierdlem20 46874 fourierdlem50 46903 fourierdlem54 46907 fourierdlem103 46956 fouriersw 46978 etransclem35 47016 etransc 47030 |
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