MyWikiBiz, Author Your Legacy — Wednesday November 05, 2025
Jump to navigationJump to search
651 bytes added
, 03:46, 17 December 2010
| Line 286: |
Line 286: |
| | t ~\operatorname{is}~ P^{\prime}, P^{\prime\prime}, P^{\prime\prime\prime}, | | t ~\operatorname{is}~ P^{\prime}, P^{\prime\prime}, P^{\prime\prime\prime}, |
| | \\[4pt] | | \\[4pt] |
| − | S^{\prime}, S^{\prime\prime}, S^{\prime\prime\prime} ~\operatorname{are}~ q, | + | S^{\prime}, S^{\prime\prime}, S^{\prime\prime\prime} ~\operatorname{are}~ q; |
| | \\[4pt] | | \\[4pt] |
| | \therefore t ~\operatorname{is}~ q. | | \therefore t ~\operatorname{is}~ q. |
| | \end{matrix}</math> | | \end{matrix}</math> |
| | </center> | | </center> |
| | + | |
| | + | <p>Such an argument is double. It combines the two following: |
| | + | |
| | + | <center> |
| | + | <math>\begin{matrix} |
| | + | 1. |
| | + | \\[4pt] |
| | + | S^{\prime}, S^{\prime\prime}, S^{\prime\prime\prime} ~\operatorname{are~taken~as~being}~ P^{\prime}, P^{\prime\prime}, P^{\prime\prime\prime}, |
| | + | \\[4pt] |
| | + | S^{\prime}, S^{\prime\prime}, S^{\prime\prime\prime} ~\operatorname{are}~ q; |
| | + | \\[4pt] |
| | + | \therefore ~(\operatorname{By~induction})~ P^{\prime}, P^{\prime\prime}, P^{\prime\prime\prime} ~\operatorname{is}~ q, |
| | + | \\[4pt] |
| | + | t ~\operatorname{is}~ P^{\prime}, P^{\prime\prime}, P^{\prime\prime\prime}; |
| | + | \\[4pt] |
| | + | \therefore ~(\operatorname{Deductively})~ t ~\operatorname{is}~ q. |
| | + | \end{matrix}</math> |
| | + | </center> |
| | + | |
| | |} | | |} |
| | | | |