| You can point to a real live cow chewing its cud in a pasture and equate it with the letters c—o—w on the page | "Abstract representations of numbers in the animal and human brain" |
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| , "Archimedes of Syracuse" p | Heath, Thomas Little 1981 [originally published 1921] |
Peirce, of the 1872 lithograph ed.
| "Cyclic proofs of program termination in separation logic" | See, for example 's statement "Mathematics, rightly viewed, possesses not only truth, but supreme beauty |
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| The science of space, number, quantity, and arrangement, whose methods involve logical reasoning and usually the use of symbolic notation, and which includes geometry, arithmetic, algebra, and analysis |
, "Revival and Decline of Greek Mathematics" p.
8