public function setIncludeLowerBound($includeLowerBound)
    {
        if (is_bool($includeLowerBound)) {
            $this->includeLowerBound = $includeLowerBound;
        } else {
            $msg = "The includeLowerBound argument must be a boolean, '" . gettype($includeLowerBound) . "' given.";
            throw new InvalidArgumentException($msg);
        }
    }
public function setIncludeLowerBound($includeLowerBound)
    {
        if (is_bool($includeLowerBound)) {
            $this->includeLowerBound = $includeLowerBound;
        } else {
            $msg = "The includeLowerBound argument must be a boolean, '" . gettype($includeLowerBound) . "' given.";
            throw new InvalidArgumentException($msg);
        }
    }
public function setIncludeLowerBound ( $ includeLowerBound ) { if ( is_bool ( $ includeLowerBound ) ) { $ this -> includeLowerBound = $ includeLowerBound ; } else { $ msg = "The includeLowerBound argument must be a boolean, '" . gettype ( $ includeLowerBound ) . "' given." ; throw new InvalidArgumentException ( $ msg ) ; } }
Set whether or not the lower bound must be included in the comparison.

@param boolean $includeLowerBound
@throws \InvalidArgumentException If $includedLowerBound is not a boolean value.
Set whether or not the lower bound must be included in the comparison .