doc-src/TutorialI/Sets/Examples.thy
changeset 12815 1f073030b97a
parent 10864 f0b0a125ae4b
child 16417 9bc16273c2d4
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    88 by blast
    88 by blast
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    90 text{*A type constraint lets it work*}
    90 text{*A type constraint lets it work*}
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    91 
    92 text{*An issue here: how do we discuss the distinction between ASCII and
    92 text{*An issue here: how do we discuss the distinction between ASCII and
    93 X-symbol notation?  Here the latter disambiguates.*}
    93 symbol notation?  Here the latter disambiguates.*}
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    94 
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    96 text{*
    96 text{*
    97 set extensionality
    97 set extensionality
    98 
    98