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Theorem domprobsiga 34742
Description: The domain of a probability measure is a sigma-algebra. (Contributed by Thierry Arnoux, 23-Dec-2016.)
Assertion
Ref Expression
domprobsiga (𝑃 ∈ Prob → dom 𝑃 ran sigAlgebra)

Proof of Theorem domprobsiga
StepHypRef Expression
1 domprobmeas 34741 . 2 (𝑃 ∈ Prob → 𝑃 ∈ (measures‘dom 𝑃))
2 measbase 34528 . 2 (𝑃 ∈ (measures‘dom 𝑃) → dom 𝑃 ran sigAlgebra)
31, 2syl 18 1 (𝑃 ∈ Prob → dom 𝑃 ran sigAlgebra)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wcel 2149   cuni 4873  dom cdm 5659  ran crn 5660  cfv 6533  sigAlgebracsiga 34439  measurescmeas 34526  Probcprb 34738
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-10 2182  ax-11 2198  ax-12 2219  ax-ext 2741  ax-sep 5258  ax-nul 5268  ax-pow 5334  ax-pr 5402  ax-un 7730
This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-nf 1811  df-sb 2098  df-mo 2573  df-eu 2603  df-clab 2748  df-cleq 2761  df-clel 2844  df-nfc 2918  df-ne 2965  df-ral 3086  df-rex 3096  df-rab 3424  df-v 3465  df-sbc 3754  df-csb 3862  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-nul 4295  df-if 4490  df-pw 4566  df-sn 4592  df-pr 4594  df-op 4598  df-uni 4874  df-br 5111  df-opab 5175  df-mpt 5194  df-id 5554  df-xp 5665  df-rel 5666  df-cnv 5667  df-co 5668  df-dm 5669  df-rn 5670  df-res 5671  df-ima 5672  df-iota 6489  df-fun 6535  df-fn 6536  df-f 6537  df-fv 6541  df-ov 7411  df-esum 34359  df-meas 34527  df-prob 34739
This theorem is referenced by:  unveldomd  34746  nuleldmp  34748  probdif  34751  totprobd  34757  cndprobin  34765  cndprob01  34766  isrrvv  34774  0rrv  34782  rrvadd  34783  rrvmulc  34784  boolesineq  34786  orrvcval4  34796  orrvcoel  34797  orrvccel  34798
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