Linked from
The 17 pages that link to Isomorphism, each with the reason it gives.
Linear operatorRelated: An invertible linear operator is an isomorphism of vector spaces.
Categorical theoryRelated: Categoricity identifies models up to this notion of structural sameness.
Five lemmaRelated: The five lemma concludes that the middle vertical map is an isomorphism.
CodeRelated: Codes often represent structures up to isomorphism rather than by identity.