Description: For a real-value random variable X , any open interval in RR is the image of a measurable set. (Contributed by Thierry Arnoux, 25-Jan-2017)
Ref | Expression | ||
---|---|---|---|
Hypotheses | isrrvv.1 | ||
rrvvf.1 | |||
Assertion | rrvfinvima |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | isrrvv.1 | ||
2 | rrvvf.1 | ||
3 | 1 | isrrvv | |
4 | 2 3 | mpbid | |
5 | 4 | simprd |