are afraid of wolves. 2. Jessica is a cat. 3. Wolves are afraid of cats. 4. Cats are afraid of sheep. 5. Winona is a wolf. 6. Sheep are afraid of cats. Jessica is afraid of sheep. 1. Rhett is not modest. 2. Vivian is confused. 3. Rhett is lazy. 4. If someone is modest or not confused, then he is not eager. Rhett is confused. (導けない) 1. All eels are fish. 2. No fish are plants. 3. Everything displayed in the collection is either a plant or an animal. 4. All animals displayed in the collection are multicellular. 5. A sea eel is displayed in the collection. 6. The sea eel is an eel or an animal or not a plant. 事実 1. Common utilities include water, electricity, gas, heating, sewer, trash, and recycling. 2. Many apartment rents cover the cost of water and electricity. 3. Susan lives in an apartment where the rent covers all utilities. 4. The rent of the apartment where Ava lives does not cover any utility expenses. 5. Noah lives in an apartment where the rent does not cover heating. 事実 事実 事実 結論 結論 Noah and Ava both need to pay the heating bill. The sea eel is multicellular or is bacteria. 結論 結論 FLD×2により解けるようになった問題 設計指針で意図した能力を獲得 設計指針1: 未知での推論 設計指針3: 公理系の多段推論 設計指針2: 前提不足 設計指針4: 多様な言語表現