modalv是什麼詞性的縮寫

Modal logic is the logic of necessity and possibility.

模態邏輯是關於必要性和可能性的邏輯。

We can do quite a lot with modal logic these days.

我們這幾天會講很多模態邏輯。

Provides consistent, multi-modal access to services.

提供對服務的一致性多模式訪問。