Test Series

Question

Is 1 a lattice?

Comments

WHY ? @Gurdeep Saini

b,e least upper bound is f,

f,g has a glb as e.

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for a lattice every pair should have unique GLB and unique LUB but have it is 2

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ya got it !

Answer 1

In (2) for f & g we don't have greatest lower bound hence not a lattice. 

Comments

chk again it has 2 lub

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yes 2 is not lattice

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Should GLB and LUB of a lattice be unique ?

Answer 2

second is not a lattice