Traditional Square of opposition

  • 272 views
Uploaded on

Logics

Logics

More in: Education
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
272
On Slideshare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
17
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. Presented by Shah Abdul Azeem
  • 2. Opposition Standard form of categorical proposition having same subject term and same predicate term but differ from each other in Quality andQuantity is called opposition.
  • 3. Four types of Traditional square of opposition  Contradictories  Contraries  Sub-contraries  Sub-Altarnation
  • 4. One is the denial or negation of the others Both cannot be true Both cannot be false
  • 5. Example of Contradictories  All Judges are lawyers.  Some Judges are not lawyers.
  • 6. Two propositions having same subject term and same predicate term but differ in quality,but same in quantity. Both cannot be true but both can be false.
  • 7. Example of contraries  All poets are dreamers,  No poets are dreamers.
  • 8. When two propositions having same subject term and same predicate term and differ in quality but same in quantity. Both cannot be false but both can be true.
  • 9. Example of sub-contraries  Some diamonds are precious stones.  Some diamonds are not precious stones
  • 10. When two propositions having same subject term and same predicate term agree in quality but different in quantity.
  • 11. Example of Sub-Alternation  All Spiders are eight leged animal.  Some spiders are eight leged animal  No whales are fishes  Some wales are fishes
  • 12. 1) Super-altern 2) Sub-altern
  • 13. It is used for universal proposition
  • 14. It is used for particular proposition
  • 15. Thanku for your corporation