Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Engineering Mathematics Set Theory & Algebra Partial Orders
What are the greatest lower bound (GLB) and the least upper bound (LUB) of the sets A = {3, 9, 12} and B = {1, 2, 4, 5, 10} if they exist in poset (z+, /)
1
A (GLB – 3, LUB - 36) ; B (GLB – 1, LUB - 20)
2
A (GLB – 3, LUB - 12) ; B (GLB – 1, LUB - 10)
3
A (GLB – 1, LUB - 36) ; B (GLB – 2, LUB - 20)
4
A (GLB – 1, LUB - 12) ; B(GLB – 2, LUB - 10)