if and only
if当且仅当
2025-11-24 04:07 浏览次数 7
if当且仅当
according to soul theory, x is the same person as y if and only if x has the same soul as y.
根据灵魂的理论,只有而且仅仅只有x与y有着完全相同的灵魂,才能认定x与y是同一个人。
and the reason for that because an argument is valid if and only if there are no possible situation in which all its premises are true and its conclusion false.
原因是因为论点有效,如果且仅如果没有可能情况,所有的前提都为真结论为假。
the bondareva-shapley theorem:the core of the game is non-empty if and only if the game is balanced (bondareva 1963, shapley 1967).
bondareva-shapley定理:只有而且仅有当博弈是平衡的时候,中心才非空。
this should happen if and only if another student can’t be found to address the issue.
而只有当学生找不到另外一个学生来解决这个问题的时候,导师作用才会发挥出来。
whenever you hear the word if, then, and, or, not, if and only if, all these logical words, all, is, lovely logical words, you「ve got to be sensitized this week because i want to hear you.
听到了如果,那么,和,或者,不,如果和只有当,这些逻辑词的时候,所有,是,很可爱的逻辑词,你这周要很敏感,因为我想听到你们。
the ensureinitialized method is a lightweight way to initialize values by calling a delegate if and only if the target variable is currently null.
ensureinitialized方法是一个保证初始化完成的轻量级做法,它在(且仅在)目标变量为null的情况才调用委托。
for each case, print the operation result. the result should be rounded to 2 decimal places if and only if it is not an integer.
对于每一个测试用例,输出结果。(小数***)结果应四舍五入小数点后2位(当且仅当它不是一个整数------注意:如果结果不是小数就不要精确)。
that is, a channel guard is ready if and only if the process at the other end of the channel has output to it and this data has not yet been input by this process.
也就是说,只有在通道另一端的进程已经输出数据,而该数据还没有被进程输入的时候,警卫才就绪。
that is, society will reward you with a remarkable life if and only if you can offer in return a useful and rare service.
社会奖励你的非凡生活仅是作为对你向社会提供珍稀服务的回报。
playing games is such a good method to have fun, if and only if you can handle the game in healthy way.
游戏是获得快乐的一种很好的途径,但如果与这渐行渐远获得的会是伤痛。
whenever you hear the word if, then, and, or, not, if and only if, all these logical words, all, is, lovely logical words, you」ve got to be sensitized this week because i want to hear you.
不管什么时候你听到了如果,那么,和,或者,不,如果和只有当,这些逻辑词的时候,所有,是,很可爱的逻辑词,你这周要很敏感,因为我想听到你们。
a positive integer is a prime if and only if it is exactly divisible by two integers, 1 and itself.
一个正整数,如果能被并且只能被1和它本身整除,那么这个数就是一个素数。
to see this yourself, design a small test program that will compile if and only if the desired condition is true.
为了能切身体会,您可以设计一个小测试程序,这个程序当且仅当期望的条件得到满足时才可以编译。
blades are an ideal form factor for much of an mmo infrastructure, if and only if your data center can manage 「hot racks.」
对于很多mmo基础结构而言,刀片结构是很理想的一种形式,但前提是数据中心必须能管理 「热的机架」。
the previous exercise shows that individual residents gain from their marginal contribution if and only if the park is smaller than .
以上练习表明当且仅当公园面积 时,居民捐款的边际收益是为正。
the fact is that your potential is unlimited if and only if you believe and you act towards drawing on it.
事实上,只要你相信并且如此去做,你的潜能就会是无限的。
the filter evaluates to true if and only if number of total occurrences (including the current one) is a multiple of 3. figure 21 shows what the completed filter will look like
当且仅当事件的总发生次数(包括当前发生的事件)为3的倍数时,该筛选器才求值为true。
at least 3 times in the body content (more or less depending on amount of content and if and only if it makes sense).
在主体(body)内容中至少出现三次 (更多或更少的次数视乎内容的数量并当且仅当它是有意义的).
okay i gave you another test. that was one test of validity and another test i gave you was in the argument is valid if and only is it's counterexample set is inconsistent.
好,给你们另一个测试,这是有效性的测试,另一个是有效论点中,如果且仅如果这是不一致的反例。
but notice thata doubling of u would lead to the same choices, because u(x1, y1)> u(x2, y2) if and only if 2u(x1,y1) > 2u(x2, y2).
我们注意到两份的u也会导致同样的选择,因为u(x1,y1)>(x2,y2),能且只能推导出2u(x1,y1)>2u(x2,y2)。
let me remind you again that an argument is valid if and only if the premises are true the conclusion must be true.
我再来提醒一下,论点有效,如果且仅如果前提为真,结论肯定为真。
it is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
具有对称性:对于任何非空的参考值x和y,当且仅当y.equals(x)返回真值是,x.equals(y)也应该返回真值。
some theories of morally correct action also introduce the category of the supererogatory : an action is supererogatory if and only if it is morally praiseworthy, but not obligatory.
有些道德正确的行为的理论还引入了多劳类别:一个行为当且仅当它在道德上值得表扬但不是义务时就属于多劳类别。
if and only if the composition merely consisted of such a picture, what would you write?
如果,只是如果作文考题是这样的一副图,你会写些什么东西?
an epistemic proposition is true if and only if it is a member of corresponding world.
一个认知命题是真的,当且仅当它属于相应的认知世界之中。
make sure an http 200 response is sent back if and only if the response was successful and the returned data is the expected one.
只有在请求确实成功了而且返回的数据就是期望的数据的情况下,才应该发送回http响应码200,必须确保这一点。
for instance, a good test assertion is a junit test that returns true if and only if the soap envelope returned by a web service is identical to a pre-defined xml document.
例如,一个较好的测试断言为junit测试,即当且仅当web服务返回的soap信封与预定义的xml文档完全相同时,返回true。