Equivocation

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This fallacy is used frequently in the service of [[apologetics]] arguments. A few relevant examples:
 
This fallacy is used frequently in the service of [[apologetics]] arguments. A few relevant examples:
 
# [[Atheism is based on faith]].
 
# [[Atheism is based on faith]].
#* There are multiple meanings of the word ''[[faith]]'', for example things you trust or things which believe in with good evidence.
+
#* There are multiple meanings of the word ''[[faith]]'', for example things you trust in without critical analysis or things which people believe with good evidence.
 
# [[Prayer]] is meditation.
 
# [[Prayer]] is meditation.
 
#* Redefining prayer as only a form of mental mediation rather than petitions for things is often used to justify the efficacy of prayer in the petition context.
 
#* Redefining prayer as only a form of mental mediation rather than petitions for things is often used to justify the efficacy of prayer in the petition context.
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#* When someone says, "That person wasn't really a [[Christian]] because he did that," they are relying on ambiguity in the word ''Christian'' and redefining it to suit their needs.
 
#* When someone says, "That person wasn't really a [[Christian]] because he did that," they are relying on ambiguity in the word ''Christian'' and redefining it to suit their needs.
 
# [[The existence of laws implies a law-giver]].
 
# [[The existence of laws implies a law-giver]].
#* This stems from a confusion between [[natural law]]s and legal laws. Even legal laws do not always require a law giver.  [[Wikipedia:Common law|Common law]] can involve customs which are [[Meme]]s that evolved over time.   
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#* This stems from a confusion between [[natural law]]s and legal laws. Even legal laws do not always require a law giver.  [[Wikipedia:Common law|Common law]] can involve customs which are [[Meme]]s that evolved over time.   
 
# [[Evolution is only a theory]].
 
# [[Evolution is only a theory]].
 
#* This plays on the confusion between the scientific and colloquial definitions of the word ''theory''.
 
#* This plays on the confusion between the scientific and colloquial definitions of the word ''theory''.

Revision as of 02:40, 24 September 2009

Equivocation is a logical fallacy that involves taking a word with more than one definition and freely substituting one definition for another.

For example:

"A feather is light. Therefore, a feather cannot be dark."
  • There are two meanings of the word light. The first sentence assumes a meaning that is the opposite of heavy, not the opposite of dark.

This fallacy is used frequently in the service of apologetics arguments. A few relevant examples:

  1. Atheism is based on faith.
    • There are multiple meanings of the word faith, for example things you trust in without critical analysis or things which people believe with good evidence.
  2. Prayer is meditation.
    • Redefining prayer as only a form of mental mediation rather than petitions for things is often used to justify the efficacy of prayer in the petition context.
  3. The Bible is Metaphorically true.
    • Metaphors are figurative language and as such aren't considered true or false. Declaring the Bible to be metaphorical allows one to assert the truth of the book without defending it. Subsequently slipping back to the definition of true in the sense of reality after the calls to defend the Bible subside.
  4. "No true Scotsman" fallacy.
    • When someone says, "That person wasn't really a Christian because he did that," they are relying on ambiguity in the word Christian and redefining it to suit their needs.
  5. The existence of laws implies a law-giver.
    • This stems from a confusion between natural laws and legal laws. Even legal laws do not always require a law giver. Common law can involve customs which are Memes that evolved over time.
  6. Evolution is only a theory.
    • This plays on the confusion between the scientific and colloquial definitions of the word theory.

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