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topology: Prove that the open ball B2: = {(x, y) ∈ R2 | x2 + y2...

topology:

Prove that the open ball B2: = {(x, y) ∈ R2 | x2 + y2 <1} in R2 is homeomorphic to the open squared unit C2: = {(x, y) ∈R2 | 0 <x <1.0 <and <1}
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