⁠ incorporates a cardinality smaller sized than or equal for the cardinality of An additional set ⁠ T displaystyle T ⁠ plus the list of all actual figures hold the very same cardinality, a bijection remaining furnished by the purpose ⁠ x ↦ tan ⁡ ( π x / 2 https://ralstonu468tuu1.wikijm.com/user