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Mirrors > Home > MPE Home > Th. List > elxrge0 | Structured version Visualization version GIF version |
Description: Elementhood in the set of nonnegative extended reals. (Contributed by Mario Carneiro, 28-Jun-2014.) |
Ref | Expression |
---|---|
elxrge0 | ⊢ (𝐴 ∈ (0[,]+∞) ↔ (𝐴 ∈ ℝ* ∧ 0 ≤ 𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-3an 1086 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 0 ≤ 𝐴 ∧ 𝐴 ≤ +∞) ↔ ((𝐴 ∈ ℝ* ∧ 0 ≤ 𝐴) ∧ 𝐴 ≤ +∞)) | |
2 | 0xr 10677 | . . 3 ⊢ 0 ∈ ℝ* | |
3 | pnfxr 10684 | . . 3 ⊢ +∞ ∈ ℝ* | |
4 | elicc1 12770 | . . 3 ⊢ ((0 ∈ ℝ* ∧ +∞ ∈ ℝ*) → (𝐴 ∈ (0[,]+∞) ↔ (𝐴 ∈ ℝ* ∧ 0 ≤ 𝐴 ∧ 𝐴 ≤ +∞))) | |
5 | 2, 3, 4 | mp2an 691 | . 2 ⊢ (𝐴 ∈ (0[,]+∞) ↔ (𝐴 ∈ ℝ* ∧ 0 ≤ 𝐴 ∧ 𝐴 ≤ +∞)) |
6 | pnfge 12513 | . . . 4 ⊢ (𝐴 ∈ ℝ* → 𝐴 ≤ +∞) | |
7 | 6 | adantr 484 | . . 3 ⊢ ((𝐴 ∈ ℝ* ∧ 0 ≤ 𝐴) → 𝐴 ≤ +∞) |
8 | 7 | pm4.71i 563 | . 2 ⊢ ((𝐴 ∈ ℝ* ∧ 0 ≤ 𝐴) ↔ ((𝐴 ∈ ℝ* ∧ 0 ≤ 𝐴) ∧ 𝐴 ≤ +∞)) |
9 | 1, 5, 8 | 3bitr4i 306 | 1 ⊢ (𝐴 ∈ (0[,]+∞) ↔ (𝐴 ∈ ℝ* ∧ 0 ≤ 𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: ↔ wb 209 ∧ wa 399 ∧ w3a 1084 ∈ wcel 2111 class class class wbr 5030 (class class class)co 7135 0cc0 10526 +∞cpnf 10661 ℝ*cxr 10663 ≤ cle 10665 [,]cicc 12729 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2113 ax-9 2121 ax-10 2142 ax-11 2158 ax-12 2175 ax-ext 2770 ax-sep 5167 ax-nul 5174 ax-pow 5231 ax-pr 5295 ax-un 7441 ax-cnex 10582 ax-resscn 10583 ax-1cn 10584 ax-addrcl 10587 ax-rnegex 10597 ax-cnre 10599 |
This theorem depends on definitions: df-bi 210 df-an 400 df-or 845 df-3an 1086 df-tru 1541 df-ex 1782 df-nf 1786 df-sb 2070 df-mo 2598 df-eu 2629 df-clab 2777 df-cleq 2791 df-clel 2870 df-nfc 2938 df-ne 2988 df-nel 3092 df-ral 3111 df-rex 3112 df-rab 3115 df-v 3443 df-sbc 3721 df-dif 3884 df-un 3886 df-in 3888 df-ss 3898 df-nul 4244 df-if 4426 df-pw 4499 df-sn 4526 df-pr 4528 df-op 4532 df-uni 4801 df-br 5031 df-opab 5093 df-id 5425 df-xp 5525 df-rel 5526 df-cnv 5527 df-co 5528 df-dm 5529 df-iota 6283 df-fun 6326 df-fv 6332 df-ov 7138 df-oprab 7139 df-mpo 7140 df-pnf 10666 df-mnf 10667 df-xr 10668 df-ltxr 10669 df-le 10670 df-icc 12733 |
This theorem is referenced by: 0e0iccpnf 12837 ge0xaddcl 12840 ge0xmulcl 12841 xnn0xrge0 12884 xrge0subm 20132 psmetxrge0 22920 isxmet2d 22934 prdsdsf 22974 prdsxmetlem 22975 comet 23120 stdbdxmet 23122 xrge0gsumle 23438 xrge0tsms 23439 metdsf 23453 metds0 23455 metdstri 23456 metdsre 23458 metdseq0 23459 metdscnlem 23460 metnrmlem1a 23463 xrhmeo 23551 lebnumlem1 23566 xrge0f 24335 itg2const2 24345 itg2uba 24347 itg2mono 24357 itg2gt0 24364 itg2cnlem2 24366 itg2cn 24367 iblss 24408 itgle 24413 itgeqa 24417 ibladdlem 24423 iblabs 24432 iblabsr 24433 iblmulc2 24434 itgsplit 24439 bddmulibl 24442 bddiblnc 24445 xrge0addge 30507 xrge0infss 30510 xrge0addcld 30512 xrge0subcld 30513 xrge00 30720 xrge0tsmsd 30742 esummono 31423 gsumesum 31428 esumsnf 31433 esumrnmpt2 31437 esumpmono 31448 hashf2 31453 measge0 31576 measle0 31577 measssd 31584 measunl 31585 omssubaddlem 31667 omssubadd 31668 carsgsigalem 31683 pmeasmono 31692 sibfinima 31707 prob01 31781 dstrvprob 31839 itg2addnclem 35108 ibladdnclem 35113 iblabsnc 35121 iblmulc2nc 35122 ftc1anclem4 35133 ftc1anclem5 35134 ftc1anclem6 35135 ftc1anclem7 35136 ftc1anclem8 35137 ftc1anc 35138 xrge0ge0 41979 rrxsphere 45162 |
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