Mon, 14 May 2007 20:14:31 +0200 generalized sgn function to work on any real normed vector space
huffman [Mon, 14 May 2007 20:14:31 +0200] rev 22972
generalized sgn function to work on any real normed vector space
Mon, 14 May 2007 19:14:50 +0200 root and sqrt on negative inputs
huffman [Mon, 14 May 2007 19:14:50 +0200] rev 22971
root and sqrt on negative inputs
Mon, 14 May 2007 18:48:24 +0200 move lemmas to RealPow.thy; tuned proofs
huffman [Mon, 14 May 2007 18:48:24 +0200] rev 22970
move lemmas to RealPow.thy; tuned proofs
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