[Ethan Clive Osgoode]

I can't prove a negative.

I just proved one. You must have a very special idea of "negative".

[LeGrande]

I can't prove a negative.

I just proved one. You must have a very special idea of "negative".

Saying a sumo wrestler isn't in your fridge isn't a negative (in this context), both sumo wrestlers and your fridge exist. Saying that there are no sumo wrestlers is a negative.

If I say that there are no leprechauns, then open the fridge and don't find a leprechaun, does that prove that there are no leprechauns?