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P. HISTORY OF ' AATHEMATICAL - School of Mathematics

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314 A <strong>HISTORY</strong> <strong>OF</strong> MATHEMATICAL NOTATIONS<br />

not to be expected to be so fruitful, and, in fact, that it has not been<br />

so fruitful.<br />

"It is important to bear in mind that this study is avowedly concerned<br />

with the psychological aspect <strong>of</strong> symbolism, and consequently<br />

such a symbolism as that <strong>of</strong> Frege, which is <strong>of</strong> much less service in<br />

the economy <strong>of</strong> thought than in the attainment <strong>of</strong> the most scrupulous<br />

precision, is not considered.....<br />

"In Peano's important work, dating from 1888 onwards, on logical<br />

and mathematical symbolism, what he always aimed at, and largely<br />

succeeded in attaining, was the accurate formulation and deduction<br />

from explicit premises <strong>of</strong> a number <strong>of</strong> mathematical theories, such as<br />

the calculus <strong>of</strong> vectors, arithmetic, and metrical geometry. It was,<br />

then, consistently with this point <strong>of</strong> view that he maintained that<br />

Rignano's criticisms hold against those who consider mathematical<br />

logic as a science in itself, but not against those who consider it as an<br />

instrument for solving mathematical problems which resist the<br />

ordinary methods.<br />

"The proper reply to Rignano seems, however, to be that, until<br />

comparatively lately, symbolism in mathematics and the algebra <strong>of</strong><br />

logic had the sole aim <strong>of</strong> helping reasoning by giving a fairly thorough<br />

analysis <strong>of</strong> reasoning and a condensed form <strong>of</strong> the analyzed reasoning,<br />

which should, by suggesting to us analogies in familiar branches<br />

<strong>of</strong> algebra, make mechanical the process <strong>of</strong> following the thread <strong>of</strong><br />

deduction; but that, on the other hand, a great part <strong>of</strong> what modern<br />

mathematical logic does is to increase our subtlety by emphasizing<br />

differences in concepts and reasonings instead <strong>of</strong> analogies."<br />

699. A question.-No topic which we have discussed approaches<br />

closer to the problem <strong>of</strong> a uniform and universal language in mathematics<br />

than does the topic <strong>of</strong> symbolic logic. The problem <strong>of</strong> efficient<br />

and uniform notations is perhaps the most serious one facing the<br />

mathematical public. No group <strong>of</strong> workers has been more active in<br />

the endeavor to find a solution <strong>of</strong> that problem than those who have<br />

busied themselves with symbolic logic-Leibniz, Lambert, De Morgan,<br />

Boole, C. S. Peirce, Schroder, Peano, E. H. Moore, Whitehead,<br />

Russell. Excepting Leibniz, their mode <strong>of</strong> procedure has been in the<br />

main individualistic. Each proposed a list <strong>of</strong> symbols, with the hope,<br />

no doubt, that mathematicians in general would adopt them. That<br />

expectation has not been realized. What other mode <strong>of</strong> procedure is<br />

open for the attainment <strong>of</strong> the end which all desire?

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