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In philosophy Immanuel Kant, in 1783, wrote: "That everywhere space (which is not itself the boundary of another space) has three dimensions and that space in general cannot have more dimensions is based on the proposition that not more than three lines can intersect at right angles in one point. This proposition cannot at all be shown from concepts, but rests immediately on intuition and indeed on pure intuition a priori because it is apodictically (demonstrably) certain."<ref>Prolegomena, ยง 12</ref>

"Space has Four Dimensions" is a short story published in 1846 by German philosopher and experimental psychologist Gustav Fechner under the pseudonym "Dr. Mises". The protagonist in the tale is a shadow who is aware of and able to communicate with other shadows, but who is trapped on a two-dimensional surface. According to Fechner, this "shadow-man" would conceive of the third dimension as being one of time.<ref>{{#invoke:Citation/CS1|citation |CitationClass=journal }}</ref> The story bears a strong similarity to the "Allegory of the Cave" presented in Plato's The Republic (c. 380 BC).

Simon Newcomb wrote an article for the Bulletin of the American Mathematical Society in 1898 entitled "The Philosophy of Hyperspace".<ref>{{#invoke:Citation/CS1|citation |CitationClass=journal }}</ref> Linda Dalrymple Henderson coined the term "hyperspace philosophy", used to describe writing that uses higher dimensions to explore metaphysical themes, in her 1983 thesis about the fourth dimension in early-twentieth-century art.<ref>{{#invoke:Citation/CS1|citation |CitationClass=journal }}</ref> Examples of "hyperspace philosophers" include Charles Howard Hinton, the first writer, in 1888, to use the word "tesseract";<ref>{{#invoke:citation/CS1|citation |CitationClass=citation }}.</ref> and the Russian esotericist P. D. Ouspensky.


Dimension sections
Intro   In mathematics    In physics    Networks and dimension    In literature    In philosophy    More dimensions    See also    References    Further reading    External links   

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