VII.what i can doDirections: complete the following analogy and identifies it's type.example: PARTS TO WHOLE fish is to fins and birds into wings_____ 1.Astronomer.________ farmer :plough_____2. hammer tool:_______:flower_____3.cardiology______:pathology:disease_____4.______:time:thermometer:temperatu-re_____5.towel:_____soap:clean
But because we can put the set of positive rational numbers into one-to-one correspondence with the set of natural numbers, we know that the cardinality of the set of rational numbers must be ℵ0, or in other words, n(Q+)=ℵ0.