Łukasiewicz谓词逻辑？(Łukasiewicz predicate logic?)

 有没有办法用Java API模拟Łukasiewicz的三值逻辑？ 
 
 更具体地说，我想模仿Łukasiewicz''M' （“这不是假的......”）运算符。 
 
 例如，我需要构造这个Predicate<String> ，它给出了以下结果： 
 
predicate.test("0") = false
predicate.test(null) = true
predicate.test("1") = true
 
 当否定时，给出： 
 
predicate.negate().test("0") = true
predicate.negate().test(null) = true
predicate.negate().test("1") = false
 
 如果要测试的值是A ，则我的谓词计算MA 。 negate()做的是计算¬MA而我希望它计算M¬A 。 
 
 PS不要用三值替换boolean值来解决使用三值替换Predicate的答案，因为我非常清楚自己如何做到这一点。 我问这个问题是为了找出纯Java8是否有可能，只需要很少的额外编码工作。 

Is there a way to emulate Łukasiewicz' three-valued logic with the Java API?
 
More concretely, I want to emulate Łukasiewicz' 'M' ("it is not false that...") operator.
 
For example I need to construct this Predicate<String> which gives the following results:
 
predicate.test("0") = false
predicate.test(null) = true
predicate.test("1") = true
 
which when negated, gives:
 
predicate.negate().test("0") = true
predicate.negate().test(null) = true
predicate.negate().test("1") = false
 
If the value to test is A, my predicate calculates MA. What negate() does is calculate ¬MA whereas I want it to calculate M¬A.
 
P.S. Don't bother working out an answer with a three-valued replacement for Predicate with a three-valued replacement of boolean, because I know well enough how to do that myself. I'm asking this question to find out if it's possible with pure Java8 with minimal extra coding effort.

原文：https://stackoverflow.com/questions/33982052