PInj

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PInj is the category of sets and partial injections.

Partial injections are interesting because they are really partial bijections.

It is a wide sub-category of Rel, keeping only the morphisms that are functional.

It is one if not the simplest starting point to make a categorical model of GoI

Definition[edit | edit source]

Properties[edit | edit source]

Examples of use[edit | edit source]

References[edit | edit source]

Historical references: