diff --git a/chores.txt b/chores.txt
deleted file mode 100644
index b699447e7..000000000
--- a/chores.txt
+++ /dev/null
@@ -1,52 +0,0 @@
-    
-1. expand unit test for pdd to test the exposed functionality
-2. develop nla bridge to pdd_grobner, similar to how grobner wraps 
-   around grobner_core in nla_grobner
-3. self-contained unit test for pdd_grobner 
-4. examine perf / memory for latest rebase.
-   Possibly nla2bv is used more, but could take resources in the sat solver.
-   We can put some limits on sat solver by configuring sat.max_conflicts.
-
-Details:
-
-1.1 test tree_size, dag_size, degree
-1.2 test out of memory scenarios (already tested for 
-    dd_bdd and code is similar)
-1.3 tests for reduce (expose bugs with small examples)
-1.4 tests for spoly
-
-2.1 add an eval module for pdd. Sample signature:
-    class pdd_eval {
-        pdd_manager& m;
-        std::function<rational (unsigned)> m_var2val;
-    public:
-        pdd_eval(pdd_manager& m): m(m) {}
-        void operator=(std::function<rational (unsigned)>& v2v) { m_var2val = v2i; }
-        rational operator()(pdd const& p);        
-    };
-2.2 disentangle nla_intervals into dep_intervals + nla_intervals 
-    (which uses dep_intervals and provides services for nex/lar_solver).
-2.3 add interval module for pdd. Sample signature:
-
-    typedef dep_intervals::interval interval;
-
-    class pdd_interval {
-        pdd_manager&  m;
-        dep_intervals m_intervals;
-        std::function<interval (unsigned)> m_var2interval;
-    public:
-        pdd_interval(pdd_manager& m, reslimit& lim): m(m) m_intervals(lim) {}
-        void operator=(std::function<interval (unsigned)>& v2i) { m_var2interval = v2i; }
-        interval operator()(pdd const& p);
-        bool separated_from_zero(pdd const& p, u_dependency*& dep) { return m_intervals.separated_from_zero((*this)(p), dep); }
-    };
-
-2.4 port other code from nla::grobner class to wrap around grobner
-2.5 review pdd_grobner for feature compatibility with grobner_core
-    There are two modes for pdd_grobner: basic and tuned. basic is similar to nla_grobner.
-    tuned is going to be full of implementation and some conceptual bugs. It is somewhat mild extension over base
-    so debugging it should be doable.
-
-
-3.1 unit tests for pdd_grobner. Maybe I take a stab at this as a starting point.
-