Talk:Logic plague

It's been confirmed now that under the Halo: Epitaph book that Ur-Didact had the logic plague and he got rid of it by the composer?...

It's just that out of the three known characters who has the Logic Plague, which It's been confirmed in the book yet again that Cortana also has it after a decade long speculation, my question is this.

What are the 'rules' of getting rid of the logic plague?

1. Mendicant Bias: obtained the plague due to coercion and persuasion of the Primordial interrogation and when interrogated by the Gravemind. Supposedly the plague was cleanses due to either the Ark firing all Halo Rings and that cleansed it or that being isolated for millennia to repent and morn over his actions, couldn't remember which.

2. Ur-Didact: Got the plague due to the Gravemind's torture, although never recalled that it was classified as a 'logic plague', always assumed that the torture made Ur-Didact mad and insane and the Gravemind used that to cause disorder for other Forerunner militants. And the composer cleansed the 'logic plague', a device that digitizes and materialize into fractured beings and that somehow made the Ur-Didact sane?

3. Cortana: Confirmed now that she had the plague by the gravemind in Halo 3... But how did she cleanse her plague? That's what I seem to not understand. Her rampancy in Halo 4 that cause her to affiliate her trauma do to 7 year life span and the Gravemind's influence, but that was cleanses to due resurrection through the Domain but the plague remained? What was her motive as being leader of The Created and her influence behind that? Was she doing it out of volition for preservation of world order or the means of disruption across the galaxy by the Gravemind's influence? Or was it that Cortana supposed to bring back the Flood? What made her cleansed it was it that she simply made a vital mistake based on her philosophy? Was she or was she not influence by the logic plague at all of that's the case?

It's a loaded question but I feel a confliction that I couldn't easily answer myself.