pre calculus

[lelo]

how can one know if the statement in Math is well-defined or not?
like now, I have to say if the following is well defined or not:
1.the Math105 students who fared badly in the proficiency test
2.the Math 105 students who scored less than 50% in the proficiency test.:?:

 

[JeffM]

how can one know if the statement in Math is well-defined or not?
like now, I have to say if the following is well defined or not:
1.the Math105 students who fared badly in the proficiency test
2.the Math 105 students who scored less than 50% in the proficiency test.:?:

The first statement is qualitative, meaning not specified in terms of quantities, so it is too ambiguous for math to deal with it. Now it may be that everyone "knows" that "fare badly" means "less than 50%", in which case the first statement intends an unambiguous quantitative meaning but does not express it so it is incomplete.

 

[HallsofIvy]

Actually neither of those is a "statement". They are "nominative clauses" because the refer to a certain set of students but there is NO verb so it doesn't say anything about that set.