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 Βιβλία Βιβλία
Having observed that this quality is common to all things with which we are acquainted, we obtain an abstract idea of number. We first make calculations about sensible objects; and we soon observe that the same calculations will apply to things very dissimilar;...
Intellectual Arithmetic - Σελίδα 4
των Warren Colburn - 1839
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## First lessons in arithmetic: on the plan of Pestalozzi, with some improvements

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...we are acquainted, we obtain an abstract idea of number. We first make calculations about sensible objects ; and we soon observe, that the same calculations...they may be made without reference to any particular tilings. Hence from particulars, we establish general principles, which serve as the basis of our reasonings,...

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