| 单词 | biconditional | 
| 释义 | biconditionalbiconditional /ˌbaɪkənˈdɪʃənəl/ noun (also ˌbiconditional ˈstatement) [countable]  math, algebra a statement expressing two mathematical facts, one of which can only be true if the other one is true. It always contains the phrase “If and only if...” or the sign ↔.—biconditional adjective:  a biconditional proposition  | 
	
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