资讯

Welcome to r/counting, the self-proclaimed “most productive place on reddit,” where users are counting up to infinity, one digit at a time, all day, every day. Why are they doing this?
I learned I was an obsessive at a young age. My fourth grade teacher at Cottonwood Elementary School once told us students it was impossible to write 10,000 words without eventually repeating at l… ...
Without the theorem of the excluded middle, all kinds of difficulties arise. In fact, many mathematical proofs are based on ...