Discrete Math
posted by Rey .
so i have this description: S consists of all strings of a's, b's and c's where an increasing number of a's come before an increasing number of b's and c's or c's and b's. does this make sense for this recursive definition of the set S over {a,b,c}: 1. a is in S and 2. if x in S then ax, xb, xc are in S?
Respond to this Question
Similar Questions

chemistry
Which of the following properties increase with increasing atomic number for fluorine and chlorine? 
chemistry
Which of the following properties increase with increasing atomic number for fluorine and chlorine? 
algebra
A recent study shows that the number of Australian homes with a computer doubles every 8 months. Assuming that the number is increasing continuously, at approximately what monthly rate must the number of Australian computer owners … 
Physics
Which one of the following actions would make the maxima in the interference pattern from a grating move closer together? 
Physics
Which one of the following actions would make the maxima in the interference pattern from a grating move closer together? 
Math
For the first 30 days of a flu outbreak, the number of students on your campus who become ill is increasing. Which is worse: The number of students with the flu is increasing arithmetically or is increasing geometrically? 
Chem
increasing the temperature increasing the pressure increasing the amount of water All of these will increase both solubilities. 
discrete math
Q 8: Count the number of 01strings with following constraints. (a) The length is 8. Number of 1s is 2 more than number of 0s. (b) The length is 8. Number of 1s is 3 more than number of 0s. (c) The length is 9. Number of 1s is 3 more … 
discrete math
Q 8: Count the number of 01strings with following constraints. (b) The length is 8. Number of 1s is 3 more than number of 0s. (c) The length is 9. Number of 1s is 3 more than number of 0s. 
discrete math
Q 8: Count the number of 01strings with following constraints. (c) The length is 9. Number of 1s is 3 more than number of 0s.