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| Mirrors > Home > MPE Home > Th. List > Mathboxes > sge0prle | Structured version Visualization version GIF version | ||
| Description: The sum of a pair of nonnegative extended reals is less than or equal their extended addition. When it is a distinct pair, than equality holds, see sge0pr 46928. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
| Ref | Expression |
|---|---|
| sge0prle.a | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| sge0prle.b | ⊢ (𝜑 → 𝐵 ∈ 𝑊) |
| sge0prle.d | ⊢ (𝜑 → 𝐷 ∈ (0[,]+∞)) |
| sge0prle.e | ⊢ (𝜑 → 𝐸 ∈ (0[,]+∞)) |
| sge0prle.cd | ⊢ (𝑘 = 𝐴 → 𝐶 = 𝐷) |
| sge0prle.ce | ⊢ (𝑘 = 𝐵 → 𝐶 = 𝐸) |
| Ref | Expression |
|---|---|
| sge0prle | ⊢ (𝜑 → (Σ^‘(𝑘 ∈ {𝐴, 𝐵} ↦ 𝐶)) ≤ (𝐷 +𝑒 𝐸)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | preq1 4689 | . . . . . . . 8 ⊢ (𝐴 = 𝐵 → {𝐴, 𝐵} = {𝐵, 𝐵}) | |
| 2 | dfsn2 4592 | . . . . . . . . . 10 ⊢ {𝐵} = {𝐵, 𝐵} | |
| 3 | 2 | eqcomi 2770 | . . . . . . . . 9 ⊢ {𝐵, 𝐵} = {𝐵} |
| 4 | 3 | a1i 11 | . . . . . . . 8 ⊢ (𝐴 = 𝐵 → {𝐵, 𝐵} = {𝐵}) |
| 5 | 1, 4 | eqtrd 2796 | . . . . . . 7 ⊢ (𝐴 = 𝐵 → {𝐴, 𝐵} = {𝐵}) |
| 6 | 5 | mpteq1d 5187 | . . . . . 6 ⊢ (𝐴 = 𝐵 → (𝑘 ∈ {𝐴, 𝐵} ↦ 𝐶) = (𝑘 ∈ {𝐵} ↦ 𝐶)) |
| 7 | 6 | fveq2d 6865 | . . . . 5 ⊢ (𝐴 = 𝐵 → (Σ^‘(𝑘 ∈ {𝐴, 𝐵} ↦ 𝐶)) = (Σ^‘(𝑘 ∈ {𝐵} ↦ 𝐶))) |
| 8 | 7 | adantl 485 | . . . 4 ⊢ ((𝜑 ∧ 𝐴 = 𝐵) → (Σ^‘(𝑘 ∈ {𝐴, 𝐵} ↦ 𝐶)) = (Σ^‘(𝑘 ∈ {𝐵} ↦ 𝐶))) |
| 9 | sge0prle.b | . . . . . 6 ⊢ (𝜑 → 𝐵 ∈ 𝑊) | |
| 10 | sge0prle.e | . . . . . 6 ⊢ (𝜑 → 𝐸 ∈ (0[,]+∞)) | |
| 11 | sge0prle.ce | . . . . . 6 ⊢ (𝑘 = 𝐵 → 𝐶 = 𝐸) | |
| 12 | 9, 10, 11 | sge0snmpt 46917 | . . . . 5 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ {𝐵} ↦ 𝐶)) = 𝐸) |
| 13 | 12 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ 𝐴 = 𝐵) → (Σ^‘(𝑘 ∈ {𝐵} ↦ 𝐶)) = 𝐸) |
| 14 | 8, 13 | eqtrd 2796 | . . 3 ⊢ ((𝜑 ∧ 𝐴 = 𝐵) → (Σ^‘(𝑘 ∈ {𝐴, 𝐵} ↦ 𝐶)) = 𝐸) |
| 15 | iccssxr 13427 | . . . . . . . 8 ⊢ (0[,]+∞) ⊆ ℝ* | |
| 16 | 15, 10 | sselid 3932 | . . . . . . 7 ⊢ (𝜑 → 𝐸 ∈ ℝ*) |
| 17 | 16 | xaddlidd 45857 | . . . . . 6 ⊢ (𝜑 → (0 +𝑒 𝐸) = 𝐸) |
| 18 | 17 | eqcomd 2767 | . . . . 5 ⊢ (𝜑 → 𝐸 = (0 +𝑒 𝐸)) |
| 19 | 0xr 11222 | . . . . . . 7 ⊢ 0 ∈ ℝ* | |
| 20 | 19 | a1i 11 | . . . . . 6 ⊢ (𝜑 → 0 ∈ ℝ*) |
| 21 | sge0prle.d | . . . . . . 7 ⊢ (𝜑 → 𝐷 ∈ (0[,]+∞)) | |
| 22 | 15, 21 | sselid 3932 | . . . . . 6 ⊢ (𝜑 → 𝐷 ∈ ℝ*) |
| 23 | pnfxr 11229 | . . . . . . . 8 ⊢ +∞ ∈ ℝ* | |
| 24 | 23 | a1i 11 | . . . . . . 7 ⊢ (𝜑 → +∞ ∈ ℝ*) |
| 25 | iccgelb 13399 | . . . . . . 7 ⊢ ((0 ∈ ℝ* ∧ +∞ ∈ ℝ* ∧ 𝐷 ∈ (0[,]+∞)) → 0 ≤ 𝐷) | |
| 26 | 20, 24, 21, 25 | syl3anc 1389 | . . . . . 6 ⊢ (𝜑 → 0 ≤ 𝐷) |
| 27 | 20, 22, 16, 26 | xleadd1d 45865 | . . . . 5 ⊢ (𝜑 → (0 +𝑒 𝐸) ≤ (𝐷 +𝑒 𝐸)) |
| 28 | 18, 27 | eqbrtrd 5119 | . . . 4 ⊢ (𝜑 → 𝐸 ≤ (𝐷 +𝑒 𝐸)) |
| 29 | 28 | adantr 484 | . . 3 ⊢ ((𝜑 ∧ 𝐴 = 𝐵) → 𝐸 ≤ (𝐷 +𝑒 𝐸)) |
| 30 | 14, 29 | eqbrtrd 5119 | . 2 ⊢ ((𝜑 ∧ 𝐴 = 𝐵) → (Σ^‘(𝑘 ∈ {𝐴, 𝐵} ↦ 𝐶)) ≤ (𝐷 +𝑒 𝐸)) |
| 31 | sge0prle.a | . . . . 5 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 32 | 31 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ ¬ 𝐴 = 𝐵) → 𝐴 ∈ 𝑉) |
| 33 | 9 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ ¬ 𝐴 = 𝐵) → 𝐵 ∈ 𝑊) |
| 34 | 21 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ ¬ 𝐴 = 𝐵) → 𝐷 ∈ (0[,]+∞)) |
| 35 | 10 | adantr 484 | . . . 4 ⊢ ((𝜑 ∧ ¬ 𝐴 = 𝐵) → 𝐸 ∈ (0[,]+∞)) |
| 36 | sge0prle.cd | . . . 4 ⊢ (𝑘 = 𝐴 → 𝐶 = 𝐷) | |
| 37 | neqne 2964 | . . . . 5 ⊢ (¬ 𝐴 = 𝐵 → 𝐴 ≠ 𝐵) | |
| 38 | 37 | adantl 485 | . . . 4 ⊢ ((𝜑 ∧ ¬ 𝐴 = 𝐵) → 𝐴 ≠ 𝐵) |
| 39 | 32, 33, 34, 35, 36, 11, 38 | sge0pr 46928 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐴 = 𝐵) → (Σ^‘(𝑘 ∈ {𝐴, 𝐵} ↦ 𝐶)) = (𝐷 +𝑒 𝐸)) |
| 40 | 22, 16 | xaddcld 13297 | . . . . 5 ⊢ (𝜑 → (𝐷 +𝑒 𝐸) ∈ ℝ*) |
| 41 | 40 | xrleidd 13147 | . . . 4 ⊢ (𝜑 → (𝐷 +𝑒 𝐸) ≤ (𝐷 +𝑒 𝐸)) |
| 42 | 41 | adantr 484 | . . 3 ⊢ ((𝜑 ∧ ¬ 𝐴 = 𝐵) → (𝐷 +𝑒 𝐸) ≤ (𝐷 +𝑒 𝐸)) |
| 43 | 39, 42 | eqbrtrd 5119 | . 2 ⊢ ((𝜑 ∧ ¬ 𝐴 = 𝐵) → (Σ^‘(𝑘 ∈ {𝐴, 𝐵} ↦ 𝐶)) ≤ (𝐷 +𝑒 𝐸)) |
| 44 | 30, 43 | pm2.61dan 822 | 1 ⊢ (𝜑 → (Σ^‘(𝑘 ∈ {𝐴, 𝐵} ↦ 𝐶)) ≤ (𝐷 +𝑒 𝐸)) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ∧ wa 399 = wceq 1559 ∈ wcel 2141 ≠ wne 2956 {csn 4579 {cpr 4581 class class class wbr 5097 ↦ cmpt 5178 ‘cfv 6515 (class class class)co 7390 0cc0 11066 +∞cpnf 11206 ℝ*cxr 11208 ≤ cle 11210 +𝑒 cxad 13105 [,]cicc 13345 Σ^csumge0 46896 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5224 ax-sep 5243 ax-nul 5253 ax-pow 5319 ax-pr 5387 ax-un 7712 ax-inf2 9589 ax-cnex 11122 ax-resscn 11123 ax-1cn 11124 ax-icn 11125 ax-addcl 11126 ax-addrcl 11127 ax-mulcl 11128 ax-mulrcl 11129 ax-mulcom 11130 ax-addass 11131 ax-mulass 11132 ax-distr 11133 ax-i2m1 11134 ax-1ne0 11135 ax-1rid 11136 ax-rnegex 11137 ax-rrecex 11138 ax-cnre 11139 ax-pre-lttri 11140 ax-pre-lttrn 11141 ax-pre-ltadd 11142 ax-pre-mulgt0 11143 ax-pre-sup 11144 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3or 1098 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-nel 3061 df-ral 3076 df-rex 3086 df-rmo 3366 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4284 df-if 4478 df-pw 4554 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-int 4903 df-iun 4948 df-br 5098 df-opab 5160 df-mpt 5179 df-tr 5205 df-id 5538 df-eprel 5543 df-po 5551 df-so 5552 df-fr 5596 df-se 5597 df-we 5598 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-pred 6282 df-ord 6343 df-on 6344 df-lim 6345 df-suc 6346 df-iota 6471 df-fun 6517 df-fn 6518 df-f 6519 df-f1 6520 df-fo 6521 df-f1o 6522 df-fv 6523 df-isom 6524 df-riota 7347 df-ov 7393 df-oprab 7394 df-mpo 7395 df-om 7841 df-1st 7964 df-2nd 7965 df-frecs 8255 df-wrecs 8286 df-recs 8335 df-rdg 8374 df-1o 8430 df-2o 8431 df-er 8671 df-en 8921 df-dom 8922 df-sdom 8923 df-fin 8924 df-sup 9381 df-oi 9451 df-card 9890 df-pnf 11211 df-mnf 11212 df-xr 11213 df-ltxr 11214 df-le 11215 df-sub 11409 df-neg 11410 df-div 11838 df-nn 12204 df-2 12273 df-3 12274 df-n0 12475 df-z 12562 df-uz 12833 df-rp 12987 df-xadd 13108 df-ico 13348 df-icc 13349 df-fz 13506 df-fzo 13653 df-seq 14008 df-exp 14068 df-hash 14337 df-cj 15116 df-re 15117 df-im 15118 df-sqrt 15252 df-abs 15253 df-clim 15505 df-sum 15704 df-sumge0 46897 |
| This theorem is referenced by: omeunle 47050 |
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