Mathematical symbolism →    View it...

In this section we shall look at some of the symbols that are commonly used, and leading on from this we shall look at the language of set theory. A table of mathematical symbols is shown below:

Partial list of mathematical symbols

SYMBOL READ AS (AND MEANING)
the square root of 4
the fourth root of 6
the ninth root of 7 cubed/to the power of 3
3 < 5 3 is less than 5
10 > 8 10 is greater than 8
m is greater than or equal to n
q is less than or equal to p
for all x
there exist at least one x
2 plus or minus 7
4 is not equal to 5
therefore true
a implies b or a only if b
c implies d and d implies c or c if and only if d
4 factorial (i.e., 1x2x3x4)
because a is less than or equal to b
| x | the modulus of x or the absolute value of x
10% of 6 10 per cent of 6