## Step 11: Logical Operators

If/else gives us a lot more power with our programs, but what if we want to only evaluate a certain statement if more than one statements are true?

```
my_first_calculation = 16 + 4 + 8
my_second_calculation = 9 - 2
if my_first_calculation < 40 && my_second_calculation == 5
puts("oooo both of those were true")
else
puts("okay, one of those was false")
end
```

Above we introduced the `&&`

logical operator. `&&`

combines two statements and only evaluates to `true`

if both of them evaluate to `true`

. Let’s look at another example:

```
my_first_calculation = 16 + 4 + 8
my_second_calculation = 9 - 2
if my_first_calculation < 40 || my_second_calculation == 5
puts("oooo one of those was true")
else
puts("okay, both of those were false")
end
```

This time everything looks the same, but we changed the `&&`

operator to the `||`

operator, and now our first check passes. The `||`

operator evaluates to `true`

if one or both of the expressions evaluates to `true`

.