% Mizar problem: t2_lukasi_1,lukasi_1,31,64 
fof(t2_lukasi_1,conjecture,(
    ! [A] : 
      ( m2_subset_1(A,k8_qc_lang1,k7_cqc_lang)
     => ! [B] : 
          ( m2_subset_1(B,k8_qc_lang1,k7_cqc_lang)
         => ! [C] : 
              ( m2_subset_1(C,k8_qc_lang1,k7_cqc_lang)
             => ( r2_hidden(k12_cqc_lang(A,B),k4_cqc_the1)
               => r2_hidden(k12_cqc_lang(k12_cqc_lang(B,C),k12_cqc_lang(A,C)),k4_cqc_the1) ) ) ) ) ),
    inference(mizar_bg_added,[status(thm)],[antisymmetry_r2_hidden,d8_cqc_the1,dt_k12_cqc_lang,dt_k1_cqc_the1,dt_k1_subset_1,dt_k1_zfmisc_1,dt_k2_qc_lang2,dt_k4_cqc_the1,dt_k7_cqc_lang,dt_k8_qc_lang1,dt_m1_subset_1,dt_m2_subset_1,existence_m1_subset_1,existence_m2_subset_1,fc2_cqc_lang,redefinition_k12_cqc_lang,redefinition_m2_subset_1,t1_lukasi_1,t82_cqc_the1]),
    [file(lukasi_1,t2_lukasi_1)]).

fof(antisymmetry_r2_hidden,axiom,(
    ! [A,B] : 
      ( r2_hidden(A,B)
     => ~ r2_hidden(B,A) ) ),
    file(hidden,r2_hidden),
    []).

fof(d8_cqc_the1,axiom,(
    k4_cqc_the1 = k1_cqc_the1(k1_subset_1(k7_cqc_lang)) ),
    file(cqc_the1,d8_cqc_the1),
    []).

fof(dt_k12_cqc_lang,axiom,(
    ! [A,B] : 
      ( ( m1_subset_1(A,k7_cqc_lang)
        & m1_subset_1(B,k7_cqc_lang) )
     => m2_subset_1(k12_cqc_lang(A,B),k8_qc_lang1,k7_cqc_lang) ) ),
    file(cqc_lang,k12_cqc_lang),
    []).

fof(dt_k1_cqc_the1,axiom,(
    ! [A] : 
      ( m1_subset_1(A,k1_zfmisc_1(k7_cqc_lang))
     => m1_subset_1(k1_cqc_the1(A),k1_zfmisc_1(k7_cqc_lang)) ) ),
    file(cqc_the1,k1_cqc_the1),
    []).

fof(dt_k1_subset_1,axiom,(
    ! [A] : 
      ( v1_xboole_0(k1_subset_1(A))
      & m1_subset_1(k1_subset_1(A),k1_zfmisc_1(A)) ) ),
    file(subset_1,k1_subset_1),
    []).

fof(dt_k1_zfmisc_1,axiom,(
    $true ),
    file(zfmisc_1,k1_zfmisc_1),
    []).

fof(dt_k2_qc_lang2,axiom,(
    ! [A,B] : 
      ( ( m1_subset_1(A,k8_qc_lang1)
        & m1_subset_1(B,k8_qc_lang1) )
     => m1_subset_1(k2_qc_lang2(A,B),k8_qc_lang1) ) ),
    file(qc_lang2,k2_qc_lang2),
    []).

fof(dt_k4_cqc_the1,axiom,(
    m1_subset_1(k4_cqc_the1,k1_zfmisc_1(k7_cqc_lang)) ),
    file(cqc_the1,k4_cqc_the1),
    []).

fof(dt_k7_cqc_lang,axiom,(
    m1_subset_1(k7_cqc_lang,k1_zfmisc_1(k8_qc_lang1)) ),
    file(cqc_lang,k7_cqc_lang),
    []).

fof(dt_k8_qc_lang1,axiom,(
    ~ v1_xboole_0(k8_qc_lang1) ),
    file(qc_lang1,k8_qc_lang1),
    []).

fof(dt_m1_subset_1,axiom,(
    $true ),
    file(subset_1,m1_subset_1),
    []).

fof(dt_m2_subset_1,axiom,(
    ! [A,B] : 
      ( ( ~ v1_xboole_0(A)
        & ~ v1_xboole_0(B)
        & m1_subset_1(B,k1_zfmisc_1(A)) )
     => ! [C] : 
          ( m2_subset_1(C,A,B)
         => m1_subset_1(C,A) ) ) ),
    file(subset_1,m2_subset_1),
    []).

fof(existence_m1_subset_1,axiom,(
    ! [A] : 
    ? [B] : m1_subset_1(B,A) ),
    file(subset_1,m1_subset_1),
    []).

fof(existence_m2_subset_1,axiom,(
    ! [A,B] : 
      ( ( ~ v1_xboole_0(A)
        & ~ v1_xboole_0(B)
        & m1_subset_1(B,k1_zfmisc_1(A)) )
     => ? [C] : m2_subset_1(C,A,B) ) ),
    file(subset_1,m2_subset_1),
    []).

fof(fc2_cqc_lang,axiom,(
    ~ v1_xboole_0(k7_cqc_lang) ),
    file(cqc_lang,fc2_cqc_lang),
    []).

fof(redefinition_k12_cqc_lang,axiom,(
    ! [A,B] : 
      ( ( m1_subset_1(A,k7_cqc_lang)
        & m1_subset_1(B,k7_cqc_lang) )
     => k12_cqc_lang(A,B) = k2_qc_lang2(A,B) ) ),
    file(cqc_lang,k12_cqc_lang),
    []).

fof(redefinition_m2_subset_1,axiom,(
    ! [A,B] : 
      ( ( ~ v1_xboole_0(A)
        & ~ v1_xboole_0(B)
        & m1_subset_1(B,k1_zfmisc_1(A)) )
     => ! [C] : 
          ( m2_subset_1(C,A,B)
        <=> m1_subset_1(C,B) ) ) ),
    file(subset_1,m2_subset_1),
    []).

fof(t1_lukasi_1,axiom,(
    ! [A] : 
      ( m2_subset_1(A,k8_qc_lang1,k7_cqc_lang)
     => ! [B] : 
          ( m2_subset_1(B,k8_qc_lang1,k7_cqc_lang)
         => ! [C] : 
              ( m2_subset_1(C,k8_qc_lang1,k7_cqc_lang)
             => r2_hidden(k12_cqc_lang(k12_cqc_lang(A,B),k12_cqc_lang(k12_cqc_lang(B,C),k12_cqc_lang(A,C))),k4_cqc_the1) ) ) ) ),
    file(lukasi_1,t1_lukasi_1),
    []).

fof(t82_cqc_the1,axiom,(
    ! [A] : 
      ( m2_subset_1(A,k8_qc_lang1,k7_cqc_lang)
     => ! [B] : 
          ( m2_subset_1(B,k8_qc_lang1,k7_cqc_lang)
         => ( ( r2_hidden(A,k4_cqc_the1)
              & r2_hidden(k12_cqc_lang(A,B),k4_cqc_the1) )
           => r2_hidden(B,k4_cqc_the1) ) ) ) ),
    file(cqc_the1,t82_cqc_the1),
    []).