Term used to model separate circumstances that cannot exist together
In philosophical logic, the concept of an impossible world (sometimes called a non-normal world)
is used to model certain
phenomena that cannot be adequately handled using ordinary possible worlds. An
impossible world, , is the same sort of thing as a possible world (whatever that may be),
except that it is in some sense "impossible." Depending on the context, this may mean that some contradictions, statements of the form are true at , or that the normal laws of logic, metaphysics, and mathematics, fail to
hold at , or both. Impossible worlds are controversial objects in philosophy, logic, and semantics. They have been around since the advent of possible world semantics for modal logic, as well as world based semantics for non-classical logics, but have yet to find the ubiquitous acceptance, that their possible counterparts have found in all walks of philosophy.
In philosophical logic, the concept of an impossibleworld (sometimes called a non-normal world) is used to model certain phenomena that cannot be adequately...
An impossible object (also known as an impossible figure or an undecidable figure) is a type of optical illusion that consists of a two-dimensional figure...
besides possible worlds, there are also impossibleworlds. Possible worlds are ways things could have been, so impossibleworlds are ways things could...
Look up impossibility in Wiktionary, the free dictionary. Impossibility may refer to: Epistemic impossibility, in modal logic a statement that cannot...
controversial thesis that there are not just possible worlds but also impossibleworlds. An impossibleworld is a world that contains a contradiction. Extended modal...
true, in the sense below. Impossible propositions (or necessarily false propositions) are those that are true in no possible world (for example: "Melissa...
Impossible Foods Inc. is a company that develops plant-based substitutes for meat products. The company's signature product, the Impossible Burger, was...
An impossible trident, also known as an impossible fork, blivet, poiuyt, or devil's tuning fork, is a drawing of an impossible object (undecipherable...
Award in 2020. Agnew, Mark (17 January 2020). "The Impossible Row: Colin O'Brady part of elite team's world first by rowing treacherous Drake Passage, where...
The Penrose stairs or Penrose steps, also dubbed the impossible staircase, is an impossible object created by Oscar Reutersvärd in 1937 and later independently...
that involves ontological commitments not just to possible worlds but also to impossibleworlds. Objects are conceived as being spread out in the modal dimension...
Impossible Princess (briefly retitled Kylie Minogue in Europe) is the sixth studio album by Australian singer Kylie Minogue, released on 22 October 1997...
The impossible trinity (also known as the impossible trilemma, the monetary trilemma or the Unholy Trinity) is a concept in international economics and...
The Impossible Quiz is a 2007 Flash game created by a DeviantArt user known as Splapp-me-do. Noted for its difficulty, the quiz game consists of various...
also known as the Penrose tribar, the impossible tribar, or the impossible triangle, is a triangular impossible object, an optical illusion consisting...
"The Impossible Planet" is the eighth episode of the second series of the British science fiction television series Doctor Who, which was first broadcast...
1994 Fantastic Four series as well as Fantastic Four: World's Greatest Heroes. The Impossible Man first appeared in Fantastic Four #11 (Feb 1963), and...
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