Can't assign SetActive because it's a "method group".

So I'm trying to make a script that toggles an object on/off based on a trigger. The problem is, when I try to assign the object's default state as SetActive = false, Unity tells me that I can't assign because it's a method group. The weird thing is, I do this very same thing other times in my script with no issue whatsoever. It's just this first instance of SetActive that Unity won't allow. Why is that? And how can I fix it? (To clarify, the issue is in "void Start" with that first SetActive. The other's are all working out.)

 using UnityEngine;
 using System.Collections;
 
 public class DoorV3 : MonoBehaviour {
     private bool IsDisplay = false;
     public GameObject DisplayText;
     public string Scene;
 
     // Use this for initialization
     void Start () {
     DisplayText.SetActive = false;
     collider.isTrigger = true;
     }
     
     // Update is called once per frame
     void Update () {
         if (IsDisplay == true){
              DisplayText.SetActive (true);
 
             if (IsDisplay == false){
                 DisplayText.SetActive (false);
             }
 
             // this makes it so that if you press enter while in the trigger area, you load the level called "AlecsLevel" if there is one.
             
             if (Input.GetKey (KeyCode.Return)){
                 Application.LoadLevel ("Scene");
             }
         }
     }
 
  void OnTriggerEnter (Collider other) {
     
     if (other.transform.tag == "Player") {
 
         IsDisplay = true;
 
     }
     
 }
 
 void OnTriggerExit (Collider other){
     if (other.transform.tag == "Player") {
         IsDisplay = false;
     }
 }
 }