The existential quantifier of logic (the propositional calculus) and the image operation along a continuous function ƒ from topology turn out to be essentially the same operation: from a categorical point of view they are both adjoint functors.

Steve Awodey, Category Theory (2010)

(I rearranged his words liberally.)


About isomorphismes

Argonaut: someone engaged in a dangerous but potentially rewarding adventure.
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