| 单词 | natural number | 
| 释义 | > as lemmasnatural number   natural number  n.				 [compare French nombre naturel (1675)]			 Mathematics 		 (a) a positive whole number (1, 2, 3, etc.), sometimes with the inclusion of zero;		 †(b) a number of which a given number is the logarithm, an antilogarithm (obsolete). ΘΚΠ the world > relative properties > number > mathematical number or quantity > 			[noun]		 > particular qualities > whole unitya1398 integer1571 integrum1594 roundnessa1654 unit1679 lateral1706 natural number1763 natural1971 1763    W. Emerson Method of Increments 113  				To find the product of all natural numbers from 1 to 100. 1864    Chambers's Encycl. VI. 172/1  				The logarithms..increased along with their corresponding natural numbers. 1890    Jrnl. Chem. Soc. 58 674  				The corresponding components of the pairs form series whose wave-numbers are functions of the successive natural numbers. 1989    R. Penrose Emperor's New Mind 		(1991)	 iii. 84  				Sets that can be put into one-to-one correspondence with the natural numbers are called countable. < as lemmas  | 
	
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