It is pretty old fasioned. It was used to refer to a set with infinitely many elements or with repeated elements (or both).
Chat with our AI personalities
Everywhere everyday you use maths for
maths? maybe you should be concerned about what "englishes" they use
statistics
Well... Grade "A" Maths could mean that you had used completely solid reasoning and a minimalistic approach to the proof that you were QEDing. Or when i last did a state exam in Maths it was my "A" Levels divided into "Pure Maths". and "Applied Maths".
Adding up :O