Concept drill
equivalence relations
GATE CSE & IT · Algebraic Structures · 1997-1998
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Rosen — Discrete Mathematics and Its Applications
Discrete structures, counting, relations, graph theory
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Let $${R_1}$$ and $${R_2}$$ be two equivalence relations on a set. Consider the following assertions: (i)$$\,\,\,\,{R_1} \cup {R_2}$$ is an euivalence relation (ii)$$\,\,\,\,{R_1}...
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1997 PYQ
The number of equivalence relations on the set $$\left\{ {1,2,3,4} \right\}$$ is
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