Modal collapse

Rarity: Common

The most frequent rarity: most Wikipedia articles become Commons.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

Class

Notion

Domain

Beliefs and thought

In collections

Nobody has pulled it yet.

What Wikipedia says

In modal logic, modal collapse is the condition in which every true statement is necessarily true, and vice versa; that is to say, there are no contingent truths, or to put it another way, that "everything exists necessarily" (and likewise if something does not exist, it cannot exist).

Excerpt from the Wikipedia article “Modal collapse”, under the CC BY-SA 4.0 license. Read the article on Wikipedia