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Subject :IMO    Class : Class 9

If ‘∩’ stands for ‘+’, ‘⊂’ stands for ‘–’, ‘⊃’ stands for ‘×’, ‘∪’ stands for ‘÷’, ‘∥’ stands for ‘=’ and ‘→’ stands for ‘>’, then which of the following expressions is not true?

A(10 ∩ 2) ⊃ (2 ∩ 2) → (10 ∪ 2)
B(20 ⊂ 8) ∪ (4 ⊂ 1) ∥ (4 ∩ 1)
C(12 ⊂ 4) ⊃ (5 ⊃ 1) → (10 ∩ 20)
D(10 ∩ 2) ⊃ (2 ∪ 2) → (10 ∪ 2)


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