However if you take the set of atoms in H-O-H: it is {H, O}! not {H, O, H}, and it has a cardinality of 2, which doesn’t map to the 3 atoms of our water molecule, because elements of sets must be distinct.
no… it contains { this H, O, that H }.
my lay understanding is that some particles cannot be distinguished. but it is unlikely that children are commonly coming across these while developing intuition for counting.
no… it contains { this H, O, that H }.
my lay understanding is that some particles cannot be distinguished. but it is unlikely that children are commonly coming across these while developing intuition for counting.