Mathbox for Glauco Siliprandi |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > meaxrcl | Structured version Visualization version GIF version |
Description: The measure of a set is an extended real. (Contributed by Glauco Siliprandi, 17-Aug-2020.) |
Ref | Expression |
---|---|
meaxrcl.1 | ⊢ (𝜑 → 𝑀 ∈ Meas) |
meaxrcl.2 | ⊢ 𝑆 = dom 𝑀 |
meaxrcl.3 | ⊢ (𝜑 → 𝐴 ∈ 𝑆) |
Ref | Expression |
---|---|
meaxrcl | ⊢ (𝜑 → (𝑀‘𝐴) ∈ ℝ*) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | iccssxr 12807 | . 2 ⊢ (0[,]+∞) ⊆ ℝ* | |
2 | meaxrcl.1 | . . 3 ⊢ (𝜑 → 𝑀 ∈ Meas) | |
3 | meaxrcl.2 | . . 3 ⊢ 𝑆 = dom 𝑀 | |
4 | meaxrcl.3 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑆) | |
5 | 2, 3, 4 | meacl 42617 | . 2 ⊢ (𝜑 → (𝑀‘𝐴) ∈ (0[,]+∞)) |
6 | 1, 5 | sseldi 3962 | 1 ⊢ (𝜑 → (𝑀‘𝐴) ∈ ℝ*) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1528 ∈ wcel 2105 dom cdm 5548 ‘cfv 6348 (class class class)co 7145 0cc0 10525 +∞cpnf 10660 ℝ*cxr 10662 [,]cicc 12729 Meascmea 42608 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1787 ax-4 1801 ax-5 1902 ax-6 1961 ax-7 2006 ax-8 2107 ax-9 2115 ax-10 2136 ax-11 2151 ax-12 2167 ax-ext 2790 ax-rep 5181 ax-sep 5194 ax-nul 5201 ax-pow 5257 ax-pr 5320 ax-un 7450 ax-cnex 10581 ax-resscn 10582 |
This theorem depends on definitions: df-bi 208 df-an 397 df-or 842 df-3an 1081 df-tru 1531 df-ex 1772 df-nf 1776 df-sb 2061 df-mo 2615 df-eu 2647 df-clab 2797 df-cleq 2811 df-clel 2890 df-nfc 2960 df-ne 3014 df-ral 3140 df-rex 3141 df-reu 3142 df-rab 3144 df-v 3494 df-sbc 3770 df-csb 3881 df-dif 3936 df-un 3938 df-in 3940 df-ss 3949 df-nul 4289 df-if 4464 df-pw 4537 df-sn 4558 df-pr 4560 df-op 4564 df-uni 4831 df-iun 4912 df-br 5058 df-opab 5120 df-mpt 5138 df-id 5453 df-xp 5554 df-rel 5555 df-cnv 5556 df-co 5557 df-dm 5558 df-rn 5559 df-res 5560 df-ima 5561 df-iota 6307 df-fun 6350 df-fn 6351 df-f 6352 df-f1 6353 df-fo 6354 df-f1o 6355 df-fv 6356 df-ov 7148 df-oprab 7149 df-mpo 7150 df-1st 7678 df-2nd 7679 df-xr 10667 df-icc 12733 df-mea 42609 |
This theorem is referenced by: meassle 42622 meaunle 42623 meassre 42636 meale0eq0 42637 meaiuninclem 42639 meaiuninc3v 42643 |
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