% Mizar problem: t8_sin_cos4,sin_cos4,98,42 
fof(t8_sin_cos4,conjecture,(
    ! [A] : 
      ( v1_xreal_0(A)
     => ( k22_sin_cos(A) != 0
       => k19_sin_cos(A) = k3_xcmplx_0(k22_sin_cos(A),k1_sin_cos4(A)) ) ) ),
    inference(mizar_bg_added,[status(thm)],[cc1_xcmplx_0,cc2_xreal_0,commutativity_k3_xcmplx_0,d1_sin_cos4,dt_k19_sin_cos,dt_k1_numbers,dt_k1_sin_cos4,dt_k22_sin_cos,dt_k3_xcmplx_0,dt_k7_xcmplx_0,dt_m1_subset_1,existence_m1_subset_1,fc3_sin_cos,fc3_xcmplx_0,fc4_sin_cos,fc4_xreal_0,fc5_xcmplx_0,fc6_xreal_0,rc1_xcmplx_0,rc1_xreal_0,t2_arithm,t5_arithm,t76_xcmplx_1,t89_xcmplx_1]),
    [file(sin_cos4,t8_sin_cos4)]).

fof(cc1_xcmplx_0,axiom,(
    ! [A] : 
      ( m1_subset_1(A,k1_numbers)
     => v1_xcmplx_0(A) ) ),
    file(xcmplx_0,cc1_xcmplx_0),
    []).

fof(cc2_xreal_0,axiom,(
    ! [A] : 
      ( v1_xreal_0(A)
     => v1_xcmplx_0(A) ) ),
    file(xreal_0,cc2_xreal_0),
    []).

fof(commutativity_k3_xcmplx_0,axiom,(
    ! [A,B] : 
      ( ( v1_xcmplx_0(A)
        & v1_xcmplx_0(B) )
     => k3_xcmplx_0(A,B) = k3_xcmplx_0(B,A) ) ),
    file(xcmplx_0,k3_xcmplx_0),
    []).

fof(d1_sin_cos4,axiom,(
    ! [A] : 
      ( v1_xreal_0(A)
     => k1_sin_cos4(A) = k7_xcmplx_0(k19_sin_cos(A),k22_sin_cos(A)) ) ),
    file(sin_cos4,d1_sin_cos4),
    []).

fof(dt_k19_sin_cos,axiom,(
    $true ),
    file(sin_cos,k19_sin_cos),
    []).

fof(dt_k1_numbers,axiom,(
    $true ),
    file(numbers,k1_numbers),
    []).

fof(dt_k1_sin_cos4,axiom,(
    ! [A] : 
      ( v1_xreal_0(A)
     => m1_subset_1(k1_sin_cos4(A),k1_numbers) ) ),
    file(sin_cos4,k1_sin_cos4),
    []).

fof(dt_k22_sin_cos,axiom,(
    $true ),
    file(sin_cos,k22_sin_cos),
    []).

fof(dt_k3_xcmplx_0,axiom,(
    $true ),
    file(xcmplx_0,k3_xcmplx_0),
    []).

fof(dt_k7_xcmplx_0,axiom,(
    $true ),
    file(xcmplx_0,k7_xcmplx_0),
    []).

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

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

fof(fc3_sin_cos,axiom,(
    ! [A] : 
      ( v1_xreal_0(A)
     => ( v1_xcmplx_0(k19_sin_cos(A))
        & v1_xreal_0(k19_sin_cos(A)) ) ) ),
    file(sin_cos,fc3_sin_cos),
    []).

fof(fc3_xcmplx_0,axiom,(
    ! [A,B] : 
      ( ( v1_xcmplx_0(A)
        & v1_xcmplx_0(B) )
     => v1_xcmplx_0(k3_xcmplx_0(A,B)) ) ),
    file(xcmplx_0,fc3_xcmplx_0),
    []).

fof(fc4_sin_cos,axiom,(
    ! [A] : 
      ( v1_xreal_0(A)
     => ( v1_xcmplx_0(k22_sin_cos(A))
        & v1_xreal_0(k22_sin_cos(A)) ) ) ),
    file(sin_cos,fc4_sin_cos),
    []).

fof(fc4_xreal_0,axiom,(
    ! [A,B] : 
      ( ( v1_xreal_0(A)
        & v1_xreal_0(B) )
     => ( v1_xcmplx_0(k3_xcmplx_0(A,B))
        & v1_xreal_0(k3_xcmplx_0(A,B)) ) ) ),
    file(xreal_0,fc4_xreal_0),
    []).

fof(fc5_xcmplx_0,axiom,(
    ! [A,B] : 
      ( ( v1_xcmplx_0(A)
        & v1_xcmplx_0(B) )
     => v1_xcmplx_0(k7_xcmplx_0(A,B)) ) ),
    file(xcmplx_0,fc5_xcmplx_0),
    []).

fof(fc6_xreal_0,axiom,(
    ! [A,B] : 
      ( ( v1_xreal_0(A)
        & v1_xreal_0(B) )
     => ( v1_xcmplx_0(k7_xcmplx_0(A,B))
        & v1_xreal_0(k7_xcmplx_0(A,B)) ) ) ),
    file(xreal_0,fc6_xreal_0),
    []).

fof(rc1_xcmplx_0,axiom,(
    ? [A] : v1_xcmplx_0(A) ),
    file(xcmplx_0,rc1_xcmplx_0),
    []).

fof(rc1_xreal_0,axiom,(
    ? [A] : 
      ( v1_xcmplx_0(A)
      & v1_xreal_0(A) ) ),
    file(xreal_0,rc1_xreal_0),
    []).

fof(t2_arithm,axiom,(
    ! [A] : 
      ( v1_xcmplx_0(A)
     => k3_xcmplx_0(A,0) = 0 ) ),
    file(arithm,t2_arithm),
    []).

fof(t5_arithm,axiom,(
    ! [A] : 
      ( v1_xcmplx_0(A)
     => k7_xcmplx_0(0,A) = 0 ) ),
    file(arithm,t5_arithm),
    []).

fof(t76_xcmplx_1,axiom,(
    ! [A] : 
      ( v1_xcmplx_0(A)
     => ! [B] : 
          ( v1_xcmplx_0(B)
         => ! [C] : 
              ( v1_xcmplx_0(C)
             => k3_xcmplx_0(k7_xcmplx_0(A,B),C) = k3_xcmplx_0(k7_xcmplx_0(C,B),A) ) ) ) ),
    file(xcmplx_1,t76_xcmplx_1),
    []).

fof(t89_xcmplx_1,axiom,(
    ! [A] : 
      ( v1_xcmplx_0(A)
     => ! [B] : 
          ( v1_xcmplx_0(B)
         => ( A != 0
           => B = k3_xcmplx_0(B,k7_xcmplx_0(A,A)) ) ) ) ),
    file(xcmplx_1,t89_xcmplx_1),
    []).