1 include "logic/equality.ma".
3 (* Inclusion of: LAT080-1.p *)
5 (* -------------------------------------------------------------------------- *)
7 (* File : LAT080-1 : TPTP v3.7.0. Released v2.6.0. *)
9 (* Domain : Lattice Theory *)
11 (* Problem : Axiom for lattice theory, part 1 *)
13 (* Version : [MP96] (equality) axioms. *)
17 (* Refs : [McC98] McCune (1998), Email to G. Sutcliffe *)
19 (* : [MP96] McCune & Padmanabhan (1996), Automated Deduction in Eq *)
25 (* Status : Unsatisfiable *)
27 (* Rating : 0.56 v3.4.0, 0.50 v3.3.0, 0.36 v3.1.0, 0.11 v2.7.0, 0.55 v2.6.0 *)
29 (* Syntax : Number of clauses : 2 ( 0 non-Horn; 2 unit; 1 RR) *)
31 (* Number of atoms : 2 ( 2 equality) *)
33 (* Maximal clause size : 1 ( 1 average) *)
35 (* Number of predicates : 1 ( 0 propositional; 2-2 arity) *)
37 (* Number of functors : 3 ( 1 constant; 0-2 arity) *)
39 (* Number of variables : 7 ( 1 singleton) *)
41 (* Maximal term depth : 12 ( 4 average) *)
43 (* Comments : A UEQ part of LAT015-1 *)
45 (* -------------------------------------------------------------------------- *)
46 ntheorem prove_normal_axioms_1:
47 (∀Univ:Type.∀A:Univ.∀B:Univ.∀C:Univ.∀D:Univ.∀E:Univ.∀F:Univ.∀G:Univ.
49 ∀join:∀_:Univ.∀_:Univ.Univ.
50 ∀meet:∀_:Univ.∀_:Univ.Univ.
51 ∀H0:∀A:Univ.∀B:Univ.∀C:Univ.∀D:Univ.∀E:Univ.∀F:Univ.∀G:Univ.eq Univ (join (meet (join (meet A B) (meet B (join A B))) C) (meet (join (meet A (join (join (meet D B) (meet B E)) B)) (meet (join (meet B (meet (meet (join D (join B E)) (join F B)) B)) (meet G (join B (meet (meet (join D (join B E)) (join F B)) B)))) (join A (join (join (meet D B) (meet B E)) B)))) (join (join (meet A B) (meet B (join A B))) C))) B.eq Univ (meet a a) a)
66 ntry (nassumption) ##;
69 (* -------------------------------------------------------------------------- *)