| Mathbox for Glauco Siliprandi |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > sge0rern | Structured version Visualization version GIF version | ||
| Description: If the sum of nonnegative extended reals is not +∞ then no terms is +∞. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
| Ref | Expression |
|---|---|
| sge0rern.x | ⊢ (𝜑 → 𝑋 ∈ 𝑉) |
| sge0rern.f | ⊢ (𝜑 → 𝐹:𝑋⟶(0[,]+∞)) |
| sge0rern.re | ⊢ (𝜑 → (Σ^‘𝐹) ∈ ℝ) |
| Ref | Expression |
|---|---|
| sge0rern | ⊢ (𝜑 → ¬ +∞ ∈ ran 𝐹) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sge0rern.x | . . . 4 ⊢ (𝜑 → 𝑋 ∈ 𝑉) | |
| 2 | 1 | adantr 486 | . . 3 ⊢ ((𝜑 ∧ +∞ ∈ ran 𝐹) → 𝑋 ∈ 𝑉) |
| 3 | sge0rern.f | . . . 4 ⊢ (𝜑 → 𝐹:𝑋⟶(0[,]+∞)) | |
| 4 | 3 | adantr 486 | . . 3 ⊢ ((𝜑 ∧ +∞ ∈ ran 𝐹) → 𝐹:𝑋⟶(0[,]+∞)) |
| 5 | simpr 490 | . . 3 ⊢ ((𝜑 ∧ +∞ ∈ ran 𝐹) → +∞ ∈ ran 𝐹) | |
| 6 | 2, 4, 5 | sge0pnfval 47477 | . 2 ⊢ ((𝜑 ∧ +∞ ∈ ran 𝐹) → (Σ^‘𝐹) = +∞) |
| 7 | sge0rern.re | . . . 4 ⊢ (𝜑 → (Σ^‘𝐹) ∈ ℝ) | |
| 8 | 7 | adantr 486 | . . 3 ⊢ ((𝜑 ∧ +∞ ∈ ran 𝐹) → (Σ^‘𝐹) ∈ ℝ) |
| 9 | 2, 4 | sge0repnf 47490 | . . 3 ⊢ ((𝜑 ∧ +∞ ∈ ran 𝐹) → ((Σ^‘𝐹) ∈ ℝ ↔ ¬ (Σ^‘𝐹) = +∞)) |
| 10 | 8, 9 | mpbid 235 | . 2 ⊢ ((𝜑 ∧ +∞ ∈ ran 𝐹) → ¬ (Σ^‘𝐹) = +∞) |
| 11 | 6, 10 | pm2.65da 829 | 1 ⊢ (𝜑 → ¬ +∞ ∈ ran 𝐹) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ¬ wn 3 → wi 4 ∧ wa 401 = wceq 1569 ∈ wcel 2144 ran crn 5651 ⟶wf 6535 ‘cfv 6539 (class class class)co 7421 ℝcr 11203 0cc0 11204 +∞cpnf 11344 [,]cicc 13483 Σ^csumge0 47466 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7752 ax-inf2 9646 ax-cnex 11260 ax-resscn 11261 ax-1cn 11262 ax-icn 11263 ax-addcl 11264 ax-addrcl 11265 ax-mulcl 11266 ax-mulrcl 11267 ax-mulcom 11268 ax-addass 11269 ax-mulass 11270 ax-distr 11271 ax-i2m1 11272 ax-1ne0 11273 ax-1rid 11274 ax-rnegex 11275 ax-rrecex 11276 ax-cnre 11277 ax-pre-lttri 11278 ax-pre-lttrn 11279 ax-pre-ltadd 11280 ax-pre-mulgt0 11281 ax-pre-sup 11282 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-se 5604 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-isom 6548 df-riota 7378 df-ov 7424 df-oprab 7425 df-mpo 7426 df-om 7879 df-1st 8002 df-2nd 8003 df-frecs 8303 df-wrecs 8334 df-recs 8383 df-rdg 8422 df-1o 8480 df-er 8721 df-en 8978 df-dom 8979 df-sdom 8980 df-fin 8981 df-sup 9438 df-oi 9508 df-card 10024 df-pnf 11349 df-mnf 11350 df-xr 11351 df-ltxr 11352 df-le 11353 df-sub 11547 df-neg 11548 df-div 11978 df-nn 12340 df-2 12409 df-3 12410 df-n0 12611 df-z 12698 df-uz 12970 df-rp 13125 df-ico 13486 df-icc 13487 df-fz 13644 df-fzo 13793 df-seq 14149 df-exp 14209 df-hash 14479 df-cj 15272 df-re 15273 df-im 15274 df-sqrt 15408 df-abs 15409 df-clim 15661 df-sum 15860 df-sumge0 47467 |
| This theorem is used by: sge0less 47496 sge0rnbnd 47497 sge0ltfirp 47504 sge0resplit 47510 sge0le 47511 sge0iunmptlemre 47519 sge0rernmpt 47526 |
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