Quote:
Originally Posted by Roger Slater
I'll say four. If just two 90 degree walls had mirrors, there would be three. One on each wall, plus a half on each where they join. I'm not sure how the floor would figure in, though. Beyond my puny brain.
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You are right in trying first a simpler problem - with two mirrors instead of three. But isn't a translation akin to a mirror image? In my post, you can easily see at least two such "mirrors" (especially if you imagine the original and the English translation typeset side-by-side as it is done here:
https://math.berkeley.edu/~giventh/v...translator.pdf
But how many "mirror images" (including the source) are there?