A Plane Flies from New York to Chicago,from Chicago to Denver,and

A plane flies from New York to Chicago,from Chicago to Denver,and from Denver to Los Angeles.The plane's on-time,late,or early departure from each city is recorded as 0 or - or +,respectively.For example,(+,-,0)represents the plane leaving earlier than its scheduled departure time from New York,later than its scheduled departure time from Chicago,and on-time from Denver.Assume that the time ahead of schedule or behind schedule is the same so that the pilot can make up for a late departure.For example,(-,0,+)means the plane was x minutes late out of New York,on-time out of Chicago,and made up the x minutes late out of New York by leaving Denver x minutes early.The plane is,therefore,on time when it arrives in Los Angeles.Determine the following events:
(a)
= {the plane arrives in L.A.on time}
(b)
= {the plane is late on arrival in L.A.}
(c)
= {the plane is on time when it arrives at Denver}
(d)
= {the plane arrives in L.A.as late as possible}
(e)
(f)
∪
(g)
∩
(h)
∩
(i)
∪
(j)
∩