Talk:De Morgan's laws: Difference between revisions

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Substitution form paragraph

GrkCan's paragraph from July 2020 on the Substitution form really does not make a lot of sense. What is it trying to say? — Preceding unsigned comment added by 125.235.239.193 (talk) 11:08, 21 May 2022 (UTC)[reply]

Discussion

The proposition "The complement of the union of two sets is the same as the intersection of their complements " is False. Boutarfa1 (talk) 12:03, 24 September 2023 (UTC)[reply]

Discussion

In the proposition "the complement of the intersection of two sets is the union of the complements of the given sets " some conditions should be precised like that the complements of the given sets can be from the same set as well as the complement of the intersection(some other conditions are possible like when the complement of the intersection is taken from a set that is included in the set that the complements of the given sets are taken from). Boutarfa1 (talk) 12:24, 24 September 2023 (UTC)[reply]

@@ Line 25: / Line 25: @@
 The proposition "The complement of the union of two sets is the same as the intersection of their complements " is False. [[User:Boutarfa1|Boutarfa1]] ([[User talk:Boutarfa1|talk]]) 12:03, 24 September 2023 (UTC)
+== Discussion ==
+In the proposition "the complement of the intersection of two sets is the union of the complements of the given sets " some conditions should   be precised like that the complements of the given sets can be from the same set as well as the complement of the intersection(some other conditions are possible like when the complement of  the intersection is taken from a set that is included in the set that the   complements of the given sets are  taken from). [[User:Boutarfa1|Boutarfa1]] ([[User talk:Boutarfa1|talk]]) 12:24, 24 September 2023 (UTC)