As this shows, once a self-contradiction is shown, the convention for writing an Indirect Proof is to then quit the indented sequence and write just the conclusion, followed by the justification “IP.” This means that the Indirect Proof has been accomplished: by showing that the assumption led to a self-contradiction
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I don’t know I don’t know anything
Some ways African-Americans worked to stop slavery is by spreading the word, helping slaves escape, making groups to try and gain equal rights.
Explanation: