Conjunction (A ∧ B): Number "2" is even and prime., 6 is divisible by 3 and 2., 10 is divisible by 2 but not by 3., Square is a rectangle as well as rhombi., Rhombi are axially symmetric as well as centrally, Disjunction (A v B): Number 12 is divisible by 3 or 5, Number "13" is prime or odd, Rectangle is axially symmetric or centrally, In right-angle triangle we can use either the Pythagoras' theorem or the Thales' Theorem., Negation ( ¬A): √2 is not rational., None of quadrilaterals have 5 diagonals., There is one-digit natural number which is not prime., There is no axially symmetric triangle which has 3 different sides.,

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