Is he right to say that he knew she was?

Hi everyone!

As of today, ı'm going to post some philosophical contexts that make all us think and debate in a kindly way. All comments are valuable and important for each of us that may help the process of thinking. Together with these posts that ı share, I'll try to reach language which may understandable to everyone, not just by some complex and have big ego academicians. In my idea, especially in philosophy, it should include all people in the world!

Farmer Field is concerned about his prize cow, Daisy. In fact, he is so concerned that when his dairyman tells him that Daisy is in the field happily grazing, he says he needs to know for certain. He doesn’t want just to have a 99 percent idea that Daisy is safe, he wants to be able to say that he knows Daisy is okay. Farmer Field goes out to the field and standing by the gate sees in the distance, behind some trees, a white and black shape that he recognises as his favourite cow. He goes back to the dairy and tells his friend that he knows Daisy is in the field.

At this point, does Farmer Field really know it?

The dairyman says he will check too, and goes to the field. There he finds Daisy, having a nap in a hollow, behind a bush, well out of sight of the gate. He also spots a large piece of black and white paper that has got caught in a tree. Daisy is in the field, as Farmer Field thought. But was he right to say that he knew she was? why?