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Mathbox for Glauco Siliprandi |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > xadd0ge | Structured version Visualization version GIF version |
Description: A number is less than or equal to itself plus a nonnegative extended real. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
Ref | Expression |
---|---|
xadd0ge.a | ⊢ (𝜑 → 𝐴 ∈ ℝ*) |
xadd0ge.b | ⊢ (𝜑 → 𝐵 ∈ (0[,]+∞)) |
Ref | Expression |
---|---|
xadd0ge | ⊢ (𝜑 → 𝐴 ≤ (𝐴 +𝑒 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | xadd0ge.a | . . . 4 ⊢ (𝜑 → 𝐴 ∈ ℝ*) | |
2 | xaddid1 12384 | . . . 4 ⊢ (𝐴 ∈ ℝ* → (𝐴 +𝑒 0) = 𝐴) | |
3 | 1, 2 | syl 17 | . . 3 ⊢ (𝜑 → (𝐴 +𝑒 0) = 𝐴) |
4 | 3 | eqcomd 2784 | . 2 ⊢ (𝜑 → 𝐴 = (𝐴 +𝑒 0)) |
5 | 0xr 10423 | . . . . . 6 ⊢ 0 ∈ ℝ* | |
6 | 5 | a1i 11 | . . . . 5 ⊢ (𝜑 → 0 ∈ ℝ*) |
7 | 1, 6 | jca 507 | . . . 4 ⊢ (𝜑 → (𝐴 ∈ ℝ* ∧ 0 ∈ ℝ*)) |
8 | iccssxr 12568 | . . . . . 6 ⊢ (0[,]+∞) ⊆ ℝ* | |
9 | xadd0ge.b | . . . . . 6 ⊢ (𝜑 → 𝐵 ∈ (0[,]+∞)) | |
10 | 8, 9 | sseldi 3819 | . . . . 5 ⊢ (𝜑 → 𝐵 ∈ ℝ*) |
11 | 1, 10 | jca 507 | . . . 4 ⊢ (𝜑 → (𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*)) |
12 | 7, 11 | jca 507 | . . 3 ⊢ (𝜑 → ((𝐴 ∈ ℝ* ∧ 0 ∈ ℝ*) ∧ (𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*))) |
13 | 1 | xrleidd 12295 | . . . 4 ⊢ (𝜑 → 𝐴 ≤ 𝐴) |
14 | pnfxr 10430 | . . . . . 6 ⊢ +∞ ∈ ℝ* | |
15 | 14 | a1i 11 | . . . . 5 ⊢ (𝜑 → +∞ ∈ ℝ*) |
16 | iccgelb 12542 | . . . . 5 ⊢ ((0 ∈ ℝ* ∧ +∞ ∈ ℝ* ∧ 𝐵 ∈ (0[,]+∞)) → 0 ≤ 𝐵) | |
17 | 6, 15, 9, 16 | syl3anc 1439 | . . . 4 ⊢ (𝜑 → 0 ≤ 𝐵) |
18 | 13, 17 | jca 507 | . . 3 ⊢ (𝜑 → (𝐴 ≤ 𝐴 ∧ 0 ≤ 𝐵)) |
19 | xle2add 12401 | . . 3 ⊢ (((𝐴 ∈ ℝ* ∧ 0 ∈ ℝ*) ∧ (𝐴 ∈ ℝ* ∧ 𝐵 ∈ ℝ*)) → ((𝐴 ≤ 𝐴 ∧ 0 ≤ 𝐵) → (𝐴 +𝑒 0) ≤ (𝐴 +𝑒 𝐵))) | |
20 | 12, 18, 19 | sylc 65 | . 2 ⊢ (𝜑 → (𝐴 +𝑒 0) ≤ (𝐴 +𝑒 𝐵)) |
21 | 4, 20 | eqbrtrd 4908 | 1 ⊢ (𝜑 → 𝐴 ≤ (𝐴 +𝑒 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 386 = wceq 1601 ∈ wcel 2107 class class class wbr 4886 (class class class)co 6922 0cc0 10272 +∞cpnf 10408 ℝ*cxr 10410 ≤ cle 10412 +𝑒 cxad 12255 [,]cicc 12490 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1839 ax-4 1853 ax-5 1953 ax-6 2021 ax-7 2055 ax-8 2109 ax-9 2116 ax-10 2135 ax-11 2150 ax-12 2163 ax-13 2334 ax-ext 2754 ax-sep 5017 ax-nul 5025 ax-pow 5077 ax-pr 5138 ax-un 7226 ax-cnex 10328 ax-resscn 10329 ax-1cn 10330 ax-icn 10331 ax-addcl 10332 ax-addrcl 10333 ax-mulcl 10334 ax-mulrcl 10335 ax-mulcom 10336 ax-addass 10337 ax-mulass 10338 ax-distr 10339 ax-i2m1 10340 ax-1ne0 10341 ax-1rid 10342 ax-rnegex 10343 ax-rrecex 10344 ax-cnre 10345 ax-pre-lttri 10346 ax-pre-lttrn 10347 ax-pre-ltadd 10348 |
This theorem depends on definitions: df-bi 199 df-an 387 df-or 837 df-3or 1072 df-3an 1073 df-tru 1605 df-ex 1824 df-nf 1828 df-sb 2012 df-mo 2551 df-eu 2587 df-clab 2764 df-cleq 2770 df-clel 2774 df-nfc 2921 df-ne 2970 df-nel 3076 df-ral 3095 df-rex 3096 df-rab 3099 df-v 3400 df-sbc 3653 df-csb 3752 df-dif 3795 df-un 3797 df-in 3799 df-ss 3806 df-nul 4142 df-if 4308 df-pw 4381 df-sn 4399 df-pr 4401 df-op 4405 df-uni 4672 df-iun 4755 df-br 4887 df-opab 4949 df-mpt 4966 df-id 5261 df-po 5274 df-so 5275 df-xp 5361 df-rel 5362 df-cnv 5363 df-co 5364 df-dm 5365 df-rn 5366 df-res 5367 df-ima 5368 df-iota 6099 df-fun 6137 df-fn 6138 df-f 6139 df-f1 6140 df-fo 6141 df-f1o 6142 df-fv 6143 df-ov 6925 df-oprab 6926 df-mpt2 6927 df-1st 7445 df-2nd 7446 df-er 8026 df-en 8242 df-dom 8243 df-sdom 8244 df-pnf 10413 df-mnf 10414 df-xr 10415 df-ltxr 10416 df-le 10417 df-xadd 12258 df-icc 12494 |
This theorem is referenced by: xadd0ge2 40469 sge0xadd 41580 meassle 41608 ovnsubaddlem1 41715 |
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