Without considering the MIMO gain, what is the correct description about EIRP?

In wireless communication engineering, EIRP is commonly used to measure the strength of interference and the ability of the transmitter to transmit strong signals.

The product of the power supplied by the EIRP to the antenna of the radio transmitter and the absolute gain of the antenna in a given direction

EIRP represents the transmit power of the AP

EIRP=P transmit power-Loss feeder loss + G antenna gain