Leonardo de Moura 8e9d88c2cf refactor(builtin/kernel): prove iff::intro, and add a new name for it boolext (Boolean extensionality) ... Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>		2014-01-08 18:31:45 -08:00
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lean	refactor(builtin/kernel): prove iff::intro, and add a new name for it boolext (Boolean extensionality)	2014-01-08 18:31:45 -08:00