Indirect Proof (Propositional Logic for Linguists 18)
![](https://i.ytimg.com/vi/JFAQovp6rFE/mqdefault.jpg)
7:41
The Limits of Propositional Logic (Propositional Logic for Linguists 19)
![](https://i.ytimg.com/vi/gduSQrc2IkA/mqdefault.jpg)
7:16
Proofs with Rules of Inference 1 (Propositional Logic for Linguists 15)
![](https://i.ytimg.com/vi/PsmL5GTKzVs/mqdefault.jpg)
12:39
Conditional Proofs (Propositional Logic for Linguists 17)
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24:04
7.6 Indirect Proof
![](https://i.ytimg.com/vi/W4EuQ3FqgAM/mqdefault.jpg)
14:39
Indirect Proof
![](https://i.ytimg.com/vi/_ttwRaZOERc/mqdefault.jpg)
6:41
Rules of Inference (Propositional Logic for Linguists 14)
![](https://i.ytimg.com/vi/oasIqX74Mhc/mqdefault.jpg)
28:34
Discrete Math - 1.6.1 Rules of Inference for Propositional Logic
![](https://i.ytimg.com/vi/ygkt0hvLK3o/mqdefault.jpg)
11:02