Honors

• Logic


  organized body of knowledge or science that evaluates arguments
• argument


  a group of statements, one or more of which are claims to provide support for, or reasons to believe, one of the others
• statment


  a declarative sentence that is either true or false
• A statement can wither be ___ or ___.

  True; false
• premise


  the statements that set forth the reasons or evidence
• conclusion


  the statement that the evidence is claimed to support or imply
• Premises are __ or __.

  Valid; invalid
• A deductive argument is either ___ or ___.

  Valid; invalid
• Valid deductive argument


  an argument in which it is impossible for the conclusion to be false given that the the premises are true
• Invalid deductive argument


  an argument in which it is possible for the conclusion to be false given that the premises are true
• Is the following example sound or unsound and valid or invalid:

  All flowers are plants

  All daises are flowers

  Therefore, all daises are plants.

  Sound; valid
• Is there an example of a deductive argument that is valid, where there are true premises and a false conclusion?

  No
• Is the following example sound or unsound and valid or invalid:

  All flowers are plants

  All daisies are plants

  Therefore all raises are flowers.

  Unsound; invalid
• Is the following example sound or unsound and valid or invalid:

  All roses are flowers

  All daises are flowers

  Therefore, all daises are roses

  Unsound; invalid
• Is the following example sound or unsound and valid or invalid:

  All flowers are dogs

  All poodles are flowers

  Therefore, all poodles are dogs.

  Unsound; valid
• Is the following example sound or unsound and valid or invalid:

  All dogs are flowers

  All poodles are flowers

  Therefore, all poodles are dogs

  Unsound; invalid
• Is the following example sound or unsound and valid or invalid:

  All flowers are dogs

  All tigers are flowers

  Therefore all tigers are dogs

  Unsound; valid
• Is the following example sound or unsound and valid or invalid:

  All roses are cats

  All daisies are cats

  Therefore all daises are roses

  Unsound; invalid