% Mizar problem: e1_7_1_1,armstrng,222,55 
include('Axioms/SET010^0.ax').
thf(c1_7_type,type,( c1_7__armstrng: $i )).
thf(c2_7_type,type,( c2_7__armstrng: $i )).
thf(r2_waybel_4_type,type,( r2_waybel_4: $i > $i > $i > $o )).
thf(v1_relat_1_type,type,( v1_relat_1: $i > $o )).
thf(antisymmetry_r2_hidden,axiom,( ! [A: $i] : ! [B: $i] : ( ( r2_hidden @ A @ B ) => ~ ( r2_hidden @ B @ A ) ) ),file(hidden,r2_hidden)).
thf(dt_c1_7__armstrng,axiom,( $true ),file(armstrng,c1_7__armstrng)).
thf(dt_c2_7__armstrng,axiom,( v1_relat_1 @ c2_7__armstrng ),file(armstrng,c2_7__armstrng)).
thf(s1_xboole_0,axiom,( ! [A: $i > $o] : ! [B: $i] : ? [C: $i] : ! [D: $i] : ( ( r2_hidden @ D @ C ) <=> ( ( r2_hidden @ D @ B ) & ( A @ D ) ) ) ),file(xboole_0,s1_xboole_0)).
thf(e1_7_1_1__armstrng,conjecture,( ? [A: $i] : ! [B: $i] : ( ( r2_hidden @ B @ A ) <=> ( ( r2_hidden @ B @ c1_7__armstrng ) & ( r2_waybel_4 @ c1_7__armstrng @ B @ c2_7__armstrng ) ) ) ),file(armstrng,e1_7_1_1__armstrng)).
