Posts on this site occur in chronological order. The OP reveals that the error message blames '^\'. My mistake was simply that I didn't realise the parser intended this as a representation of ctrl-\ - a finding published later than my post. But obviously from your comment, you didn't know that either or didn't draw the correct inference.
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^M Free your mind!

In reply to Re^3: Subtracting Stringified Negative Numbers (carrots) by Moron
in thread Subtracting Stringified Negative Numbers by monkfan

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