"Cantor's theorem" meaning in English

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  "etymology_text": "Named after German mathematician George Cantor (1845-1918) who stated and proved this theorem.",
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      "glosses": [
        "A theorem in set theory which states for any set A, the set of all subsets of A (the power set of A, denoted by 𝒫(A)) has a strictly greater cardinality than A itself."
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          "power set",
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          "cardinality",
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        "(set theory) A theorem in set theory which states for any set A, the set of all subsets of A (the power set of A, denoted by 𝒫(A)) has a strictly greater cardinality than A itself."
      ],
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        "mathematics",
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  "etymology_text": "Named after German mathematician George Cantor (1845-1918) who stated and proved this theorem.",
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        "A theorem in set theory which states for any set A, the set of all subsets of A (the power set of A, denoted by 𝒫(A)) has a strictly greater cardinality than A itself."
      ],
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        "(set theory) A theorem in set theory which states for any set A, the set of all subsets of A (the power set of A, denoted by 𝒫(A)) has a strictly greater cardinality than A itself."
      ],
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        "mathematics",
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