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tuned proofs
2007-05-14, by huffman
add lemma sgn_mult; declare real_scaleR_def and scaleR_eq_0_iff as simp rules
2007-05-14, by huffman
generalized sgn function to work on any real normed vector space
2007-05-14, by huffman
root and sqrt on negative inputs
2007-05-14, by huffman
move lemmas to RealPow.thy; tuned proofs
2007-05-14, by huffman
tuned proofs
2007-05-14, by huffman
tuned
2007-05-14, by huffman
added general sum-squares lemmas
2007-05-14, by huffman
new lemmas
2007-05-14, by huffman
ProofGeneral: Find Theorems search form
2007-05-14, by webertj
reorganized float arithmetic
2007-05-14, by haftmann
fixed IntInf ambiguity
2007-05-14, by haftmann
remove redundant lemmas
2007-05-14, by huffman
remove redundant lemmas
2007-05-14, by huffman
remove redundant lemmas
2007-05-14, by huffman
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