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===Lesson 4=== | ===Lesson 4=== | ||
[[Perspective]=P]A ∃ V<sub>1</sub>⇒(C<sub>1</sub>V<sub>1</sub>C<sub>2</sub>V<sub>2</sub>C<sub>3</sub>). | [[Perspective]=P]A ∃ V<sub>1</sub>⇒(C<sub>1</sub>V<sub>1</sub>C<sub>2</sub>V<sub>2</sub>C<sub>3</sub>). | ||
:{| | :{| |
edits