#include "resolve.h"

This page has information from files resolve.h and resolve.c.

Contents

Public Routines in File resolve.c

Index

copy_inferencemerge_literalsresolve3
binary_factorshyper_resolutionres_instance_prunesur_resolution
binary_resolutioninstantiate_clauseresolve2xx_resolve2

Details


void resolution_options(BOOL ordered,
			BOOL check_instances,
			BOOL initial_nuclei,
			int ur_nucleus_limit);

void binary_factors(Topform c, void (*proc_proc) (Topform));

void binary_resolution(Topform c,
		       int res_type,  /* POS_RES, NEG_RES, ANY_RES */
		       Lindex idx,
		       void (*proc_proc) (Topform));
Binary resolution. 
Topform copy_inference(Topform c);
This makes a "copy" inference; that is, a copy of the clause in which the justification is "copy". All attributes are copied (not just the inheritible attributes). An ID is not assigned. 
void hyper_resolution(Topform c, int pos_or_neg, Lindex idx,
		      void (*proc_proc) (Topform));
Hyperresolution. 
Topform instantiate_clause(Topform c, Context subst);

void merge_literals(Topform c);

int res_instance_prunes();

Topform resolve2(Topform c1, int n1, Topform c2, int n2, BOOL renumber_vars);
Resolve, if possible, two clauses on the literals (specified by literals, counting from 1). Include justification, transfer inheritable attributes, but do not assign an ID. Renumbering of variables is optional.

if n2 < 0, then the literal is abs(n2), and it should be flipped. 

Topform resolve3(Topform c1, Literals l1, Topform c2, Literals l2, BOOL renumber_vars);
Similar to resolve2(), but literals are given instead of integers. 
void ur_resolution(Topform c, int target_constraint, Lindex idx,
		   void (*proc_proc) (Topform));
Unit-resulting resolution. 
Topform xx_resolve2(Topform c, int n, BOOL renumber_vars);
Resolve, if possible, a clause with x=x. Renumber vars, include justification, transfer inheritable attributes, but do not assign an ID.

Public Definitions in File resolve.h

enum {  /* literal selection */
  LIT_SELECTION_NONE,
  LIT_SELECTION_MAXIMAL,
  LIT_SELECTION_ALL
};

enum {  /* types of resolution (binary, hyper, UR) */
  POS_RES,  /* positive */
  NEG_RES,  /* negative */
  ANY_RES   /* unrestricted by sign */
};

Introduction