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* (broken) update hott for Isabelle 2021-1HEADmasterstuebinm2022-06-293-23/+24
| | | | | | | | | this just replaces all instance of `this` with instances of `infer`. Unfortunately, it looks likes something else also broke, and I have no idea what it is (but the proof for equiv_if_equal fails). Sadly this means we can't get to univalence for now … (but rn I'm too tired to try anything else with it)
* 1. Thm/def statement display. 2. Syntax + computation proof.Josh Chen2021-06-281-2/+2
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* begin refactoring EquivalenceJosh Chen2021-06-281-0/+458
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* Bad practice huge commit:Josh Chen2021-06-245-16/+60
| | | | | | | 1. Rudimentary prototype definitional package 2. Started univalence 3. Various compatibility fixes and new theory stubs 4. Updated ROOT file
* Patch proof. Now works on Isabelle2021.Josh Chen2021-04-171-1/+1
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* start hprop stuffJosh Chen2021-04-102-0/+27
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* rename things + some small changesJosh Chen2021-01-313-45/+38
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* renamingsJosh Chen2021-01-213-113/+105
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* Swapped notation for metas (now ?) and holes (now {}), other notation and ↵Josh Chen2021-01-184-69/+76
| | | | name changes.
* Basic experiments adding reduction to the type checkerJosh Chen2020-09-233-73/+26
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* (FEAT) Context data slots for known types and conditional type rules, as ↵Josh Chen2020-08-143-48/+47
| | | | | | | | | | | | | well as a separate one for judgmental equality rules. (REF) Goal statement assumptions are now put into the new context data slots. (FEAT) `assuming` Isar keyword—like `assume` but puts assumptions into context data. (REF) Typechecking and all other tactics refactored to use type information from the context data, as opposed to looking at all facts visible in context. MINOR INCOMPATIBILITY: facts that were implicitly used in proofs now have to be annotated with [type] to make them visible throughout the context, else explicitly passed to methods via `using`, or declared with `assuming`. (REF) Fixed incompatibilities in theories.
* (FEAT) Clean up typechecking/elaboration tactic: known_ctac should *solve* ↵Josh Chen2020-08-091-7/+6
| | | | goals; resolving with conditional typing judgments (e.g. type family assumptions) is part of check_infer_step
* 1. fix intros method. 2. Couple extra lemmas; good small test cases for ↵Josh Chen2020-08-052-1/+60
| | | | normalization in typechecking/elaboration.
* (FEAT) SIDE_CONDS tactical has additional argument specifying how many ↵Josh Chen2020-08-032-15/+7
| | | | | | | | initial subgoals to skip applying the side condition solver to. (FEAT) `intro`, `intros` methods for "logical introduction rules" (as opposed to typechecking `intr` attribute), only works on conclusions with rigid type. (FEAT) CREPEAT_N bounded repetition tactical, used in `intros n` method.
* rename some theoremsJosh Chen2020-08-021-9/+9
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* (REF) Tweak attribute names in preparation for new logical introduction rule ↵Josh Chen2020-07-313-21/+21
| | | | behavior
* (FEAT) Term elaboration of assumption and goal statements.Josh Chen2020-07-315-402/+400
| | | | | | | | | | | | | | | | | | | | . spartan/core/goals.ML . spartan/core/elaboration.ML . spartan/core/elaborated_statement.ML (FEAT) More context tacticals and search tacticals. . spartan/core/context_tactical.ML (FEAT) Improved subgoal focus. Moves fully elaborated assumptions into the context (MINOR INCOMPATIBILITY). . spartan/core/focus.ML (FIX) Normalize facts in order to be able to resolve properly. . spartan/core/typechecking.ML (MAIN) New definitions. (MAIN) Renamed theories and theorems. (MAIN) Refactor theories to fit new features.
* Hook elaboration into assumptions mechanismJosh Chen2020-07-272-50/+55
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* 1. Bugfix: implicits now properly name schematic variables. Fixes problems ↵Josh Chen2020-07-212-19/+22
| | | | caused by variable name clashes. 2. reduce method now more principled: restricts to repeating on first subgoal. 3. An example declarative proof in Equivalence.thy.
* 1. Type-checking/inference now more principled, and the implementation is ↵Josh Chen2020-07-215-117/+109
| | | | better. 2. Changed most tactics to context tactics.
* Non-annotated object lambdaJosh Chen2020-07-094-16/+16
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* minorJosh Chen2020-07-082-3/+3
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* reorganizeJosh Chen2020-06-191-0/+43
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* rule nameJosh Chen2020-06-031-1/+1
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* reorganize and add some materialJosh Chen2020-06-011-3/+3
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* multiplicationJosh Chen2020-05-311-6/+72
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* transport methodJosh Chen2020-05-311-0/+2
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* add and mul recurse on second argument instead of firstJosh Chen2020-05-301-20/+49
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* fix nameJosh Chen2020-05-301-1/+5
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* proved a few oopses + minor tweaksJosh Chen2020-05-292-30/+23
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* clean up Eckmann-Hilton and move to IdentityJosh Chen2020-05-293-209/+206
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* minorJosh Chen2020-05-291-1/+1
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* change variable name in elim rules and fix small mistakeJosh Chen2020-05-271-7/+7
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* minorJosh Chen2020-05-272-8/+3
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* 1. Define Maybe in terms of other types. 2. Move More_Types to SpartanJosh Chen2020-05-271-91/+0
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* Eckmann-Hilton, first passJosh Chen2020-05-272-3/+192
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* new materialJosh Chen2020-05-265-34/+58
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* more reorganizingJosh Chen2020-05-254-12/+10
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* Lists + more reorganizingJosh Chen2020-05-254-12/+14
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* Reorganize theory structure. In particular, the identity type moves out from ↵Josh Chen2020-05-253-1/+881
| | | | under Spartan to HoTT. Spartan now only has Pi and Sigma.
* minorJosh Chen2020-05-251-1/+1
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* some arithmeticJosh Chen2020-05-251-17/+30
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* new work on elimination tacticJosh Chen2020-05-241-1/+1
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* some tweaks and comments, in preparation for general inductive type eliminationJosh Chen2020-05-221-4/+47
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* minor namingJosh Chen2020-04-161-9/+13
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* 1. change var names. 2. add and mulJosh Chen2020-04-031-8/+11
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* 1. Base theory. 2. Fix Nat axioms, addition.Josh Chen2020-04-032-11/+21
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* Brand-spanking new version using Spartan infrastructureJosh Chen2020-04-022-0/+141
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