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| Mirrors > Home > MPE Home > Th. List > lesubd | Structured version Visualization version GIF version | ||
| Description: Swap subtrahends in an inequality. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| leidd.1 | ⊢ (𝜑 → 𝐴 ∈ ℝ) |
| ltnegd.2 | ⊢ (𝜑 → 𝐵 ∈ ℝ) |
| ltadd1d.3 | ⊢ (𝜑 → 𝐶 ∈ ℝ) |
| lesubd.4 | ⊢ (𝜑 → 𝐴 ≤ (𝐵 − 𝐶)) |
| Ref | Expression |
|---|---|
| lesubd | ⊢ (𝜑 → 𝐶 ≤ (𝐵 − 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lesubd.4 | . 2 ⊢ (𝜑 → 𝐴 ≤ (𝐵 − 𝐶)) | |
| 2 | leidd.1 | . . 3 ⊢ (𝜑 → 𝐴 ∈ ℝ) | |
| 3 | ltnegd.2 | . . 3 ⊢ (𝜑 → 𝐵 ∈ ℝ) | |
| 4 | ltadd1d.3 | . . 3 ⊢ (𝜑 → 𝐶 ∈ ℝ) | |
| 5 | lesub 11663 | . . 3 ⊢ ((𝐴 ∈ ℝ ∧ 𝐵 ∈ ℝ ∧ 𝐶 ∈ ℝ) → (𝐴 ≤ (𝐵 − 𝐶) ↔ 𝐶 ≤ (𝐵 − 𝐴))) | |
| 6 | 2, 3, 4, 5 | syl3anc 1373 | . 2 ⊢ (𝜑 → (𝐴 ≤ (𝐵 − 𝐶) ↔ 𝐶 ≤ (𝐵 − 𝐴))) |
| 7 | 1, 6 | mpbid 232 | 1 ⊢ (𝜑 → 𝐶 ≤ (𝐵 − 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∈ wcel 2109 class class class wbr 5109 (class class class)co 7389 ℝcr 11073 ≤ cle 11215 − cmin 11411 |
| 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 2702 ax-sep 5253 ax-nul 5263 ax-pow 5322 ax-pr 5389 ax-un 7713 ax-resscn 11131 ax-1cn 11132 ax-icn 11133 ax-addcl 11134 ax-addrcl 11135 ax-mulcl 11136 ax-mulrcl 11137 ax-mulcom 11138 ax-addass 11139 ax-mulass 11140 ax-distr 11141 ax-i2m1 11142 ax-1ne0 11143 ax-1rid 11144 ax-rnegex 11145 ax-rrecex 11146 ax-cnre 11147 ax-pre-lttri 11148 ax-pre-lttrn 11149 ax-pre-ltadd 11150 |
| 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 2534 df-eu 2563 df-clab 2709 df-cleq 2722 df-clel 2804 df-nfc 2879 df-ne 2927 df-nel 3031 df-ral 3046 df-rex 3055 df-reu 3357 df-rab 3409 df-v 3452 df-sbc 3756 df-csb 3865 df-dif 3919 df-un 3921 df-in 3923 df-ss 3933 df-nul 4299 df-if 4491 df-pw 4567 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4874 df-br 5110 df-opab 5172 df-mpt 5191 df-id 5535 df-po 5548 df-so 5549 df-xp 5646 df-rel 5647 df-cnv 5648 df-co 5649 df-dm 5650 df-rn 5651 df-res 5652 df-ima 5653 df-iota 6466 df-fun 6515 df-fn 6516 df-f 6517 df-f1 6518 df-fo 6519 df-f1o 6520 df-fv 6521 df-riota 7346 df-ov 7392 df-oprab 7393 df-mpo 7394 df-er 8673 df-en 8921 df-dom 8922 df-sdom 8923 df-pnf 11216 df-mnf 11217 df-xr 11218 df-ltxr 11219 df-le 11220 df-sub 11413 df-neg 11414 |
| This theorem is referenced by: ge2halflem1 13074 elfzo0subge1 13672 fldiv4lem1div2uz2 13804 fsum0diaglem 15748 cvgcmp 15788 mertenslem1 15856 itg2split 25656 dvfsumlem2 25939 dvfsumlem2OLD 25940 lgamgulmlem3 26947 pntlemo 27524 nvabs 30607 cos9thpiminplylem1 33778 ballotlemsel1i 34510 aks4d1p1p2 42053 bcled 42161 lzenom 42751 stoweidlem41 46032 fourierdlem42 46140 fourierdlem107 46204 ioorrnopnlem 46295 |
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