Draw diagrams to explain the answers to the following questions.
a. Is it possible to have a ↓ b = 0?
b. Is it possible to have a ↓ b undefined?
c. Is it possible to have a ↓ b = b ↓ a ?
d. Explain why a ↓ c = a ↓ ( b ↓ c )
Draw diagrams to explain the answers to the following questions.
a. Is it possible to have a ↓ b = 0?
b. Is it possible to have a ↓ b undefined?
c. Is it possible to have a ↓ b = b ↓ a ?
d. Explain why a ↓ c = a ↓ ( b ↓ c )
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