184 reputation
5
bio website inf.puc-rio.br/~hgualandi
location Brazil
age 24
visits member for 3 years, 3 months
seen Jul 20 at 13:56

May
23
revised Troll Maths : Bijection between P(N) and N?
latex the examples.
Feb
1
revised If $f(x) = h(x)g(x)$, is $h$ differentiable if $f$ and $g$ are?
make it clearer whoe is differentiable and who isn't
Jan
3
revised An example of an easy to understand undecidable problem
edited body
Nov
24
revised
added link (the exact more-info link is not necessarily self-descriptive)
Nov
10
revised An example of an easy to understand undecidable problem
added 559 characters in body
Nov
10
revised An example of an easy to understand undecidable problem
added 559 characters in body