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What is 1 + 3?
What are the 6 Sources of Skepticism?
1) Informal Fallacies
2) Traditions and Customs
3) Common Sense
If pseudo argument does not succeed, No argument will
Traditions and Customs
What we are most comfortable with is true
Natural sign is always accompanied with reality or the sign is reality
Appearance is Reality
is misused when philosophical concepts overlap with scientific methods
is skeptical when it is not fully understood or not fully used
What is Knowledge?
Justified True Belief
2 kinds of Justification?
Strong - argument of the opposite is impossible to be the truth
Weak - uses sensory and can highly be possible to be true
Define Contradiction in 3 ways
Quality vs. Quantity
Both cannot be true and both can not be false
all lines are straight
Quantity vs. Quality
Quantity - All or Some
Quality - is or is not
Argument uses premises to support a conclusion
an argument is Valid if the premises logically support the conclusion
argument is sound if it is Valid and the premises are True