19971111 
paulson 
19971111 
Made some proofs more robust

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19971103 
wenzelm 
19971103 
isatool fixclasimp;

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19971017 
nipkow 
19971017 
setloop split_tac > addsplits

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19970925 
paulson 
19970925 
Tidied proofs, using Clarify_tac

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19970918 
paulson 
19970918 
Global change: lost>bad and sees Spy>spies
First change just gives a more sensible name.
Second change eliminates the agent parameter of "sees" to simplify
definitions and theorems

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19970916 
paulson 
19970916 
Deleted the redundant simprule not_parts_not_analz

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19970714 
paulson 
19970714 
Changing "lost" from a parameter of protocol definitions to a constant.
Advantages: no "lost" argument everywhere; fewer Vars in subgoals;
less need for specially instantiated rules
Disadvantage: can no longer prove "Agent_not_see_encrypted_key", but this
theorem was never used, and its original proof was also broken
the introduction of the "Notes" constructor.

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19970711 
paulson 
19970711 
Removal of monotonicity reasoning involving "lost" and the theorem
Agent_not_see_encrypted_key, which (a) is never used and (b) becomes harder
to prove when Notes is available.

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19970627 
paulson 
19970627 
Corrected indentations and margins after the renaming of "set_of_list"

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19970626 
nipkow 
19970626 
set_of_list > set

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19970507 
paulson 
19970507 
Conversion to use blast_tac (with other improvements)

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19970215 
oheimb 
19970215 
reflecting my recent changes of the simplifier and classical reasoner

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19970123 
paulson 
19970123 
Tidied proofs by using "etac rev_mp" instead of applying rev_mp to result()

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19970117 
paulson 
19970117 
Now with Andy Gordon's treatment of freshness to replace newN/K

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19970109 
paulson 
19970109 
New treatment of nonce creation

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19970107 
paulson 
19970107 
Tidied up the unicity proofs

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19961219 
paulson 
19961219 
Extensive tidying and simplification, largely stemming from
changing newN and newK to take an integer argument

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19961216 
paulson 
19961216 
New tactics: prove_unique_tac and analz_induct_tac

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19961213 
paulson 
19961213 
Streamlined many proofs

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19961205 
paulson 
19961205 
Minor speedups

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19961205 
paulson 
19961205 
Publickey examples

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