MyWikiBiz, Author Your Legacy — Monday December 08, 2025
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, 17:44, 8 December 2008
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| | ==Logical Graph Sandbox== | | ==Logical Graph Sandbox== |
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| − | ===More Thoughts on Peirce's Law=== | + | ===More thoughts on Peirce's law=== |
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| | 1-way version: <math>((a \Rightarrow b) \Rightarrow a) \Rightarrow a</math> | | 1-way version: <math>((a \Rightarrow b) \Rightarrow a) \Rightarrow a</math> |
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| | : <math>ab \lor a = a</math> | | : <math>ab \lor a = a</math> |
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| − | ===Reports Of My Counter-Intuitiveness Are Greatly Exaggerated=== | + | ===Reports of my counter-intuitiveness are greatly exaggerated=== |
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| | We have the following theorem of classical propositional calculus: | | We have the following theorem of classical propositional calculus: |
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| | '''Exercise.''' Express the following in functional terms: | | '''Exercise.''' Express the following in functional terms: |
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| | + | <blockquote> |
| | + | <math>(\forall x \in X)(Px \Rightarrow Qx)</math> |
| | + | </blockquote> |
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| | <blockquote> | | <blockquote> |