An extension of a theorem of Euler, that the sum of four squares, multiplied by the sum of four squares, produces the sum of four squares.
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Citation: | Proceedings of the Royal Irish Academy, Ser. 1, Vol. III, pp. 526-527, 1845-7 |
Format: | Journal Article |
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1845-7
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At the NLI:
See Main Catalogue entry for
Proceedings of the Royal Irish Academy