"axiom of extensionality" meaning in English

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        "One of the axioms in axiomatic set theory, equivalent to the statement that two sets are equal if and only if they contain the same elements."
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        "(set theory) One of the axioms in axiomatic set theory, equivalent to the statement that two sets are equal if and only if they contain the same elements."
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          "sense": "axiom of extensionality",
          "word": "ekstensionaalisuusaksiooma"
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        {
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          "lang": "German",
          "sense": "axiom of extensionality",
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          "word": "Extensionalitätsaxiom"
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          "sense": "axiom of extensionality",
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          "word": "aksjomat ekstensjonalności"
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        "(set theory) One of the axioms in axiomatic set theory, equivalent to the statement that two sets are equal if and only if they contain the same elements."
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      "code": "fi",
      "lang": "Finnish",
      "sense": "axiom of extensionality",
      "word": "ekstensionaalisuusaksiooma"
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      "word": "Extensionalitätsaxiom"
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