Post HocPost Hoc

First periodFirst period

DefinitionDefinition

A fallacy in which one event is said to be A fallacy in which one event is said to be the cause of a later event simply because the cause of a later event simply because it occurred earlier.it occurred earlier.

ExampleExample

The graph in the earlier slide is an The graph in the earlier slide is an example of post hoc because it is saying example of post hoc because it is saying that because of the decrease in prites that that because of the decrease in prites that Co2 is risingCo2 is rising

Warming, Global. "Are Pirates Behind Global Warming?" Climate Skeptic. Web. 26 Apr. 2011. <http://www.climate-skeptic.com/2007/10/are-pirates-beh.html>.

ExampleExample

Page 208 Act 3Page 208 Act 3Giles: it is my third wife, Sir; I never had no Giles: it is my third wife, Sir; I never had no

wife that be so taken with books, and I wife that be so taken with books, and I thought to find the cause of it, d’y’see, but thought to find the cause of it, d’y’see, but it were no witch I blamed her for. I have it were no witch I blamed her for. I have broke charity with herbroke charity with her

Is she reads books and it is not the bible Is she reads books and it is not the bible then she must be a witchthen she must be a witch

Page 211 act 3Page 211 act 3 Parris: such a Christian that will not come to church but Parris: such a Christian that will not come to church but

once a month!once a month! Dan forth: not come to churchDan forth: not come to church Proctor; I-I have no love for Mr. Parris but I have great Proctor; I-I have no love for Mr. Parris but I have great

love for god!love for god! Cheever: I think it be evidence, john. I am an offical of Cheever: I think it be evidence, john. I am an offical of

the court, I cannot keep itthe court, I cannot keep it Proctor I-I have once or twice plowed on Sunday….Proctor I-I have once or twice plowed on Sunday….Since he plowed on Sunday and don’t come to church he Since he plowed on Sunday and don’t come to church he

must be trying to over throw the court and be a witchmust be trying to over throw the court and be a witch