Ash (1998) includes the following areas in his definition of abstract algebra: logic and foundations, counting, elementary number theory, informal set theory, linear algebra, and the theory of linear operators.
Days left until Spring 2018: 47 Days 1 Hours 29 Minutes 31 Seconds Â© 2018 HowManyDaysTill.com Create a Countdown Timer Upcoming Events
If you're counting workdays or weekends, there are 22 weekdays and 8 weekend days. If you include the end date of May 1, 2015 which is a Friday, then there would be 23 weekdays and 8 weekend days including both the starting Wednesday and the ending Friday. 30 days is equal to 4 weeks and 2 days. The total time span from 2015-04-01 to 2015-05-01 is 720 hours. This is equivalent to 43,200 minutes.