<math>a_{i}=1</math> when <math>a_{ii}\neq1</math> and <math>a_{i}=2</math> when <math>a_{ii}=1</math>.
<math>a_{i}=1</math> when <math>a_{ii}\neq1</math> and <math>a_{i}=2</math> when <math>a_{ii}=1</math>.
−
Therefor <math>a</math> is not in the list and so we have a contradition so our assumption is false hand the number <math>[0,1]</math> are not countable. Therefor <math>\mathbb{R}</math> is uncountable.
+
Therefor <math>a</math> is not in the list, so we have a contradition and our assumption is false, the number <math>[0,1]</math> are not countable. Therefor <math>\mathbb{R}</math> is uncountable.