Item:Q13429: Difference between revisions
Created a new Item: principle of explosion, theorem which states that any statement can be proven from a contradiction |
Created claim: defining formula (P333): \forall P \forall Q: (P \and \lnot P) \vdash Q |
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| Property / instance of: theorem / rank | |||
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| Property / subclass of: axiom / rank | |||
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| Property / part of: logic / rank | |||
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| Property / defining formula | |||
\forall P \forall Q: (P \and \lnot P) \vdash Q | |||
| Property / defining formula: / rank | |||
Normal rank | |||
