[" Astany "],[g:A rarr B" such that "f(a)=g(a)" faltions containing "(1,2)" and "(1,3)" whe "T" I "],[" reffexive and symmerric but not transitive is "],[[" (A) "1," (B) "2],[" 17.Let "A={1,2,3}" .Then number of equivalence relations containing "(1,2," fo "],[" (A) "1," (B) "2]]