Question: Are all odd numbers prime?
Biologist: Yes. All odd numbers are prime.
Mathematician: 1 is prime, 3 is prime, 5 is prime, 7 is prime, so yes, by mathematical induction, all odd numbers are prime.
Experimental Physicist: 1 is prime, 3 is prime, 5 is prime, 7 is prime, 9 is not prime, 11 is prime, 13 is prime, so, within experimental error, all odd numbers are prime.
Engineer: 1 is prime, 3 is prime, 5 is prime, 7 is prime, 9 is prime, 11 is prime, 13 is prime, 15 is prime, 17 is prime, 19 is prime, yes, all odd numbers are prime.
Womyn’s Studies Major: Did you just assume its cardinality?
:^) Not to quibble, but 9 and 15 are not prime.