Metamath Proof Explorer


Definition df-prob

Description: Define the class of probability measures as the set of measures with total measure 1. (Contributed by Thierry Arnoux, 14-Sep-2016)

Ref Expression
Assertion df-prob Prob = p ran measures | p dom p = 1

Detailed syntax breakdown

Step Hyp Ref Expression
0 cprb class Prob
1 vp setvar p
2 cmeas class measures
3 2 crn class ran measures
4 3 cuni class ran measures
5 1 cv setvar p
6 5 cdm class dom p
7 6 cuni class dom p
8 7 5 cfv class p dom p
9 c1 class 1
10 8 9 wceq wff p dom p = 1
11 10 1 4 crab class p ran measures | p dom p = 1
12 0 11 wceq wff Prob = p ran measures | p dom p = 1