Confusion in maths

pexels-photo-732499.jpegAt the end of our first year  at University we had to sit Exams.When revising with another girl I realised she had confused the symbols for alpha and for infinity.So most of what she  heard in lectures must have seemed like nonsense to her.I was so dumbfounded I just stared at her.Life might be even worse than we know, listening to mumbo jumbo for 3 years then sitting an exam!