Theorem domprobsiga 31669

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 31668	. 2 ⊢ (𝑃 ∈ Prob → 𝑃 ∈ (measures‘dom 𝑃))
2		measbase 31456	. 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 2114  ∪ cuni 4838  dom cdm 5555  ran crn 5556  ‘cfv 6355  sigAlgebracsiga 31367  measurescmeas 31454  Probcprb 31665

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1796  ax-4 1810  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2116  ax-9 2124  ax-10 2145  ax-11 2161  ax-12 2177  ax-ext 2793  ax-sep 5203  ax-nul 5210  ax-pow 5266  ax-pr 5330  ax-un 7461

This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3an 1085  df-tru 1540  df-fal 1550  df-ex 1781  df-nf 1785  df-sb 2070  df-mo 2622  df-eu 2654  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ral 3143  df-rex 3144  df-rab 3147  df-v 3496  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4839  df-br 5067  df-opab 5129  df-mpt 5147  df-id 5460  df-xp 5561  df-rel 5562  df-cnv 5563  df-co 5564  df-dm 5565  df-rn 5566  df-res 5567  df-ima 5568  df-iota 6314  df-fun 6357  df-fn 6358  df-f 6359  df-fv 6363  df-ov 7159  df-esum 31287  df-meas 31455  df-prob 31666

This theorem is referenced by:  unveldomd  31673  nuleldmp  31675  probdif  31678  totprobd  31684  cndprobin  31692  cndprob01  31693  isrrvv  31701  0rrv  31709  rrvadd  31710  rrvmulc  31711  orrvcval4  31722  orrvcoel  31723  orrvccel  31724