this is very interesting
>>16257407Seems obvious
>>16257407Just you wait until you learn about the Zaiski topology.
>>16257407the moon is a moon, all sets of moons are moons of sets
>>16257407For a topology, it is the union of any family and the finite intersection. This proposition said the contrary
>>16259154>he doesn't define a topology by its closed setsThis is how we know you're an undergrad.