Natural Deduction Practice Problems

Here are two natural deduction practice problems I wrote to prepare myself for last semester’s logic final. They can be solved in about 5-10 steps. Feel free to comment with your solutions. The first person to correctly answer will not receive a prize because I’m not Oprah.

Prove “p” given:

  1. p v ~q                  
  2. a–>q                   
  3. ~s–>~b              
  4. [~a-->b] & ~s     

Prove “p” given:

  1. p v ~q                  
  2. s & t                     
  3. ~[~q & t]            

Regards,

Charles Bonaventure

About these ads

2 responses to “Natural Deduction Practice Problems

Share a thought!

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Follow

Get every new post delivered to your Inbox.

Join 217 other followers

%d bloggers like this: