Is 1 a lattice?
Why srestha mam ??
2) have both LUB and GLB
@magma second one is not lattice b,e does not have LUB and f,g don't have greatest lower bound
WHY ? @Gurdeep Saini
b,e least upper bound is f,
f,g has a glb as e.
In (2) for f & g we don't have greatest lower bound hence not a lattice.
f & g
second is not a lattice