3 sentences

1. 如果条件不成立，布尔变量的值就是假。

   rú​guǒ tiáo​jiàn bù chéng​lì, Bù'ěr biàn​liàng de zhí jiù shì jiǎ.

   If the condition is not met, the value of the boolean variable is false.

   Source: Dong Chinese Dictionary

2. 我们在离散数学课上学习了布尔逻辑理论。

   wǒ​men zài lí​sàn shù​xué kè shàng xué​xí le Bù'ěr luó​ji lǐ​lùn.

   We studied Boolean logic theory in our discrete mathematics class.

   Source: Dong Chinese Dictionary

3. 在计算机科学中，布尔类型只有真和假两个值。

   zài jì​suàn​jī kē​xué zhōng, Bù'ěr lèi​xíng zhǐ​yǒu zhēn hé jiǎ liǎng gè zhí.

   In computer science, the Boolean type has only two values: true and false.

   Source: Dong Chinese Dictionary