 Frend's papers, and dated November 16, 1801, distinctly lays it down that, in these matters, it is not the principles which prove the conclusions, but the truth of the conclusions which proves that there must, somewhere or other, be principles. " Whether...  Trigonometry and Double Algebra - Page 41by Augustus De Morgan - 1849 - 167 pagesFull view - About this book
 | Astronomy - 1839 - 826 pages
...conclusions which proves that there must, somewhere or other, be principles. " Whether or not," says he, " I have found a logic, by the rules of which operations...lead to right conclusions, they must have a logic." And he goes on thus : " Till the doctrines of negative and imaginary quantities are better taught than... | |
 | Robert Aspland - 1842 - 846 pages
...conclusions which proves that there must, somewhere or other, be principles. " Whether or not," says he, " I have found a logic, by the rules of which operations...lead to right conclusions, they must have a logic." And he goes on thus : " Till the doctrines of negative and imaginary quantities are better taught than... | |
 | Frank Swetz - Mathematics - 1995 - 322 pages
...century De Morgan wrote at the outset of a chapter titled "Introduction of the unexplained symbol \/^T": It is almost impossible to discredit Woodhouse's remark, 'Whether I have found a logic, by the rule of which operations with imaginary quantities are conducted, is not now the question, but surely... | |
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