Engineering↗
Number Fields: Definition and Basic Properties
Number fields as finite extensions of the rationals, their embeddings and signature, and the presentation on which all computation depends.
Every page in the KEVOS library tagged signature. 2 pages.
Number fields as finite extensions of the rationals, their embeddings and signature, and the presentation on which all computation depends.
Algebras of arbitrary type: signatures, arities, the significance of nullary operations, and how the choice of type determines subalgebras, homomorphisms and the whole subsequen…