¬P∧¬Q⇒¬(P∨Q)
証明
https://kakeru.app/7dd338a3600d38ec4e511037a815570b https://i.kakeru.app/7dd338a3600d38ec4e511037a815570b.svg
Related to
2021-11-19 03:42:35 計算メモ
https://kakeru.app/abe77bde55bd778a2e7b5764d0956377 https://i.kakeru.app/abe77bde55bd778a2e7b5764d0956377.svg