$\"\"$

The given counterexample is $\"\"$ .

\ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\
    n
\ \
Left side of formula
\ \
Right side of formula
\
\
    1
\ \
            1
\ \
$\"\"$                 True
\
\
    2
\ \
      1 + 2 = 3
\ \
$\"\"$                 False
\
\

The value n = 2 is a counterexample for the equation. $\"\"$

The value n = 2 is a counterexample for the equation.

\ n \	\ Left side of formula \	\ Right side of formula \
\ 1 \	\ 1 \	\ $\"\"$ True \
\ 2 \	\ 1 + 2 = 3 \	\ $\"\"$ False \