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Theorem probnul 34558
Description: The probability of the empty event set is 0. (Contributed by Thierry Arnoux, 25-Dec-2016.)
Assertion
Ref Expression
probnul (𝑃 ∈ Prob → (𝑃‘∅) = 0)

Proof of Theorem probnul
StepHypRef Expression
1 domprobmeas 34554 . 2 (𝑃 ∈ Prob → 𝑃 ∈ (measures‘dom 𝑃))
2 measvnul 34350 . 2 (𝑃 ∈ (measures‘dom 𝑃) → (𝑃‘∅) = 0)
31, 2syl 17 1 (𝑃 ∈ Prob → (𝑃‘∅) = 0)
Colors of variables: wff setvar class
Syntax hints:  wi 4   = wceq 1542  wcel 2114  c0 4273  dom cdm 5631  cfv 6498  0cc0 11038  measurescmeas 34339  Probcprb 34551
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 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2708  ax-sep 5231  ax-nul 5241  ax-pow 5307  ax-pr 5375  ax-un 7689
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2539  df-eu 2569  df-clab 2715  df-cleq 2728  df-clel 2811  df-nfc 2885  df-ne 2933  df-ral 3052  df-rex 3062  df-rab 3390  df-v 3431  df-sbc 3729  df-csb 3838  df-dif 3892  df-un 3894  df-in 3896  df-ss 3906  df-nul 4274  df-if 4467  df-pw 4543  df-sn 4568  df-pr 4570  df-op 4574  df-uni 4851  df-br 5086  df-opab 5148  df-mpt 5167  df-id 5526  df-xp 5637  df-rel 5638  df-cnv 5639  df-co 5640  df-dm 5641  df-rn 5642  df-res 5643  df-ima 5644  df-iota 6454  df-fun 6500  df-fn 6501  df-f 6502  df-fv 6506  df-ov 7370  df-esum 34172  df-meas 34340  df-prob 34552
This theorem is referenced by:  probun  34563  cndprobnul  34581  dstrvprob  34616
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