Theorem domprobsiga 34669

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

Step	Hyp	Ref	Expression
1		domprobmeas 34668	. 2 ⊢ (𝑃 ∈ Prob → 𝑃 ∈ (measures‘dom 𝑃))
2		measbase 34455	. 2 ⊢ (𝑃 ∈ (measures‘dom 𝑃) → dom 𝑃 ∈ ∪ ran sigAlgebra)
3	1, 2	syl 17	1 ⊢ (𝑃 ∈ Prob → dom 𝑃 ∈ ∪ ran sigAlgebra)

Syntax hints:   → wi 4   ∈ wcel 2141  ∪ cuni 4862  dom cdm 5643  ran crn 5644  ‘cfv 6516  sigAlgebracsiga 34366  measurescmeas 34453  Probcprb 34665

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-sep 5243  ax-nul 5253  ax-pow 5319  ax-pr 5387  ax-un 7713

This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  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-ral 3076  df-rex 3086  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-nul 4284  df-if 4478  df-pw 4554  df-sn 4580  df-pr 4582  df-op 4586  df-uni 4863  df-br 5098  df-opab 5160  df-mpt 5179  df-id 5538  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-iota 6472  df-fun 6518  df-fn 6519  df-f 6520  df-fv 6524  df-ov 7394  df-esum 34286  df-meas 34454  df-prob 34666

This theorem is referenced by:  unveldomd  34673  nuleldmp  34675  probdif  34678  totprobd  34684  cndprobin  34692  cndprob01  34693  isrrvv  34701  0rrv  34709  rrvadd  34710  rrvmulc  34711  boolesineq  34713  orrvcval4  34723  orrvcoel  34724  orrvccel  34725