Practice problem
Which of the following sets is a subset of N\mathbb{N}N, the set of natural numbers?
{−1,8,10}\{-1,8,10\}{−1,8,10}
{0,1,7}\{0,1,7\}{0,1,7}
{1,1800,9589}\{1,1800,9589\}{1,1800,9589}
{−(−6),(0+1),(18)}\{-(-6),(0+1),(18)\}{−(−6),(0+1),(18)}
Type a concept, like “slope” or “photosynthesis”.