If C is a subset of A and D is a subset of B, then C or D is a subset of A or B
ID: 3076889 • Letter: I
Question
If C is a subset of A and D is a subset of B, then C or D is a subset of A or BExplanation / Answer
let us suppose C or D is not a subset of A or B => C or D contains some elements which are not present in A or B i.e,both C and D contains some elements which are not present in A or B i.e C contains some elements which are not present in A and D contains some elements which are not present in B which is an contradiction => our assumption that C or D is not a subset of A or B is wrong hence If C is a subset of A and D is a subset of B, then C or D is a subset of A or B