Question: Can someone please explain these cardinalities |{{1},{2,{3,4}}, }| = 3 |{{{1},{2,{3,4}}, }}| = 1 Why those was the closest symbol to empty set that i

Can someone please explain these cardinalities

|{{1},{2,{3,4}},Can someone please explain these cardinalities |{{1},{2,{3,4}},}| = 3 |{{{1},{2,{3,4}},}}| = 1}| = 3

|{{{1},{2,{3,4}},Why those was the closest symbol to empty set that i could}}| = 1

Why those

find at least. Transcribed image text was the closest symbol to empty set that i could find at least.

Transcribed image text

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