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

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Page 248

One stage has a single set of chromosomes (or half that of the parent) and is

same as that of the parent) and is

cell) ...

One stage has a single set of chromosomes (or half that of the parent) and is

**called**haploid, whereas the second stage has two sets of chromosomes (or thesame as that of the parent) and is

**called**diploid. When one haploid gamete (sexcell) ...

Page 291

At the same time, motivated by the study of linear spaces, the German

mathematician Hermann Giinther Grassmann introduced what is now

exterior algebras. The English mathematician Arthur Cayley introduced matrices

around ...

At the same time, motivated by the study of linear spaces, the German

mathematician Hermann Giinther Grassmann introduced what is now

**called**theexterior algebras. The English mathematician Arthur Cayley introduced matrices

around ...

Page 292

equal to 0 is

rings in the first two examples (308 and 309), however, have no nilpotent

elements except 0. The fourth example involves polynomials and power series

with ...

equal to 0 is

**called**a nilpotent element of R. So 2 is nilpo- tent (see 310). Therings in the first two examples (308 and 309), however, have no nilpotent

elements except 0. The fourth example involves polynomials and power series

with ...

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