Search results 6926 items matching your search terms. Filter the results Item type Select All/None Collection File Folder Image Link Movie Page Question Quiz Quiz History New items since Yesterday Last week Last month Ever Sort by relevance date (newest first) alphabetically Mark the following statements as tautology or contradiction by Dr. Osama M. Khaled — published Aug 15, 2022 — last modified Jul 03, 2025 12:29 PM Located in Mathematics / … / Formal Logic / Tautologies “Today is Tuesday and today is not Tuesday” is a contradiction by Dr. Osama M. Khaled — published Aug 16, 2022 — last modified Aug 17, 2022 12:09 AM Located in Mathematics / … / Formal Logic / Tautologies Equivalent wffs by Dr. Osama M. Khaled — published Aug 16, 2022 — last modified Aug 17, 2022 12:26 AM Located in Mathematics / … / Formal Logic / Tautologies Is the following an equivalent wffs? by Dr. Osama M. Khaled — published Aug 18, 2022 — last modified Aug 19, 2022 12:05 AM Located in Mathematics / … / Formal Logic / Tautologies Some Tautological Equivalences by Dr. Osama M. Khaled — published Aug 18, 2022 — last modified Jul 03, 2025 12:29 PM Located in Mathematics / … / Formal Logic / Tautologies Sets by Dr. Osama M. Khaled — published Jul 07, 2022 — last modified Oct 28, 2023 05:26 AM Elementary Set Theory Located in Mathematics / Discrete Mathematics Elementary Set Theory - Quick Review by Dr. Osama M. Khaled — published Jul 02, 2022 — last modified Jul 13, 2024 10:19 PM — filed under: Year 10 Basics in Elementary Set Theory Located in Mathematics / Discrete Mathematics / Sets Set theory is the basis of modern mathematics by Dr. Osama M. Khaled — published Jul 02, 2022 — last modified May 29, 2025 07:39 PM Located in Mathematics / … / Sets / Elementary Set Theory - Quick Review The German mathematician George Cantor (1845–1918) is regarded as the father of set theory by Dr. Osama M. Khaled — published Jul 02, 2022 — last modified May 29, 2025 07:39 PM Located in Mathematics / … / Sets / Elementary Set Theory - Quick Review From a mathematical point of view, a set is a well-defined collection of objects by Dr. Osama M. Khaled — published Jul 02, 2022 — last modified May 29, 2025 07:39 PM Located in Mathematics / … / Sets / Elementary Set Theory - Quick Review < Previous 10 items 1 ... 430 431 432 433 434 435 436 ... 693 Next 10 items > Subscribe to an always-updated RSS feed.