Which of these syllogisms is valid? Explain why these syllogisms are valid and which are not.
Consider the following arguments All chickens have feathers. This animal has feathers. Therefore, this animal is a chicken. All chickens are green. No green birds eat pickles. Therefore, no chickens eat pickles. All chickens are mortal. My pet bird Gilda is a chicken. Therefore, Gilda is mortal. All chickens are birds. All ducks are birds. … Read more