1) The Empty set contains no elements and thus has cardinality 0. a) TRUE b) FALSE 2) The symbol {Ø} is a set with one element (namely, the set containing Ø). a) TRUE b) FALSE 3) 0 = { } a) TRUE b) FALSE 4) Ø = { } a) TRUE b) FALSE 5) { Ø } = { } a) TRUE b) FALSE 6) The set of counting numbers less than 1. Is an example of empty set. a) TRUE b) FALSE 7) The difference between equal and equivalent sets is only in the difference of the elements. a) TRUE b) FALSE 8) Equivalent sets do not need to be equal sets, but equal sets are always equivalent. a) TRUE b) FALSE 9) Example of Equal set. A = {1, 2, 3, 4}, B = {x: x is a natural number less than 5} a) TRUE b) FALSE 10) Example of Equal set. A = {1, 3, 5, 7, 9}, B = {x: x is an odd prime number less than 10} a) TRUE b) FALSE

TRUE OR FALSE (NULL SET)

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