## The new encyclopaedia Britannica: in 32 vol. Macropaedia, Accounting - Architecture, Volume 13 |

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Page 271

applicable to groups and rings (for example) as well as to posets, lattices, and

Boolean algebras, are those of

defined ...

**Isomorphism**; direct product. Two general algebraic concepts, which areapplicable to groups and rings (for example) as well as to posets, lattices, and

Boolean algebras, are those of

**isomorphism**and direct product. They will now bedefined ...

Page 297

It is particularly offensive, from the categorical point of view, to define an

onto H; for an

...

It is particularly offensive, from the categorical point of view, to define an

**isomorphism**of groups <p: G — * H to be a homomorphism that is one-one andonto H; for an

**isomorphism**of groups should be just an invertible morphism of the...

Page 298

One way of proving that T is then an

are

One way of proving that T is then an

**isomorphism**is to show that V and V** are**isomorphic**and then to observe that T is one-one. The usual proof that V and V**are

**isomorphic**would be to proceed by establishing an**isomorphism**between ...### What people are saying - Write a review

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User Review - Not Available - Book VerdictFor virtually all its 238 years,Britannica has ruled the shelves as a peerless general encyclopedia. Reviewers have consistently given it high marks for most of the 12 criteria identified inKister's ... Read full review

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