# what do we know about the truth value of or statements?

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Take note that `P vv Q` is **true** if either P is **true** or Q is **true** (or both). It's only **false** if both P and Q are is *true* if either P is *true* or Q is *true* (or both). It's only *false* if both P and Q are *false*.

Take note that `P vv Q` should be **true** when both P and Q are **true**, and **false** otherwise.

Here is the truth table:

`P` `Q` `P vv Q`

`T` `T` ` T`

`T` `F` `F`

`F` `T` `F`

`F` `F` `F`