Question

Consider the following set:

A = { 1, {2,3}, 3, 4, {3,4}, 5, {5,6,7} }

Indicate the truth value of the propositions below by entering either True or False

• The cardinality of A is 11
• { 5, 6, 7} ⊆ A
• 3 ∈ A
• A - { ∅, {2,3}, {3,4}, {5,6,7}, 8 } = { 1, 3, 4, 5 }
• |A| = 7
• { {2,3}, 5 } ⊂ A
• { 1, 2, 3 } ⊆ A
• { ∅ } ∉ A
• ∅ ⊂ A
• A ⊕ { 1, {2,3}, {3,4}, 9 } = { 3, 4, 5, {5,6,7}, 9 }

Answer 1