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5 Commits

Author SHA1 Message Date
Gerwin Klein 1d2e75fd81
word_lib: lemma to turn < into bitwise reasoning 
word_less_bit_eq turns `<` into a bitwise expression on abstract word
length to make it easier to reason about the relationship of < and bit
operations (boolean, but also shift etc).

Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>
 2023-04-11 13:17:54 +10:00
Gerwin Klein e101f37cfc isabelle2022: import Word_Lib AFP changes 
Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>
 2022-11-09 11:45:46 +11:00
Gerwin Klein a45d32e574 word-lib: remove unused if/option lemma 
Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>
 2022-10-20 17:51:27 +11:00
Gerwin Klein 1b15714cbf isabelle2021-1: sync Word_Lib from afp 
Signed-off-by: Gerwin Klein <gerwin.klein@proofcraft.systems>
 2022-03-29 08:38:25 +11:00
Gerwin Klein dadb0b9f0a isabelle-2021: sync Word_Lib from AFP 
Signed-off-by: Gerwin Klein <gerwin.klein@data61.csiro.au>
 2021-09-30 16:53:17 +10:00