| Step | Hyp | Ref | Expression | 
						
							| 1 |  | bnj156.1 | Could not format  ( ze0 <-> ( f Fn 1o /\ ph' /\ ps' ) ) : No typesetting found for |- ( ze0 <-> ( f Fn 1o /\ ph' /\ ps' ) ) with typecode |- | 
						
							| 2 |  | bnj156.2 | Could not format  ( ze1 <-> [. g / f ]. ze0 ) : No typesetting found for |- ( ze1 <-> [. g / f ]. ze0 ) with typecode |- | 
						
							| 3 |  | bnj156.3 | Could not format  ( ph1 <-> [. g / f ]. ph' ) : No typesetting found for |- ( ph1 <-> [. g / f ]. ph' ) with typecode |- | 
						
							| 4 |  | bnj156.4 | Could not format  ( ps1 <-> [. g / f ]. ps' ) : No typesetting found for |- ( ps1 <-> [. g / f ]. ps' ) with typecode |- | 
						
							| 5 | 1 | sbcbii | Could not format  ( [. g / f ]. ze0 <-> [. g / f ]. ( f Fn 1o /\ ph' /\ ps' ) ) : No typesetting found for |- ( [. g / f ]. ze0 <-> [. g / f ]. ( f Fn 1o /\ ph' /\ ps' ) ) with typecode |- | 
						
							| 6 |  | sbc3an | Could not format  ( [. g / f ]. ( f Fn 1o /\ ph' /\ ps' ) <-> ( [. g / f ]. f Fn 1o /\ [. g / f ]. ph' /\ [. g / f ]. ps' ) ) : No typesetting found for |- ( [. g / f ]. ( f Fn 1o /\ ph' /\ ps' ) <-> ( [. g / f ]. f Fn 1o /\ [. g / f ]. ph' /\ [. g / f ]. ps' ) ) with typecode |- | 
						
							| 7 |  | bnj62 |  | 
						
							| 8 | 3 | bicomi | Could not format  ( [. g / f ]. ph' <-> ph1 ) : No typesetting found for |- ( [. g / f ]. ph' <-> ph1 ) with typecode |- | 
						
							| 9 | 4 | bicomi | Could not format  ( [. g / f ]. ps' <-> ps1 ) : No typesetting found for |- ( [. g / f ]. ps' <-> ps1 ) with typecode |- | 
						
							| 10 | 7 8 9 | 3anbi123i | Could not format  ( ( [. g / f ]. f Fn 1o /\ [. g / f ]. ph' /\ [. g / f ]. ps' ) <-> ( g Fn 1o /\ ph1 /\ ps1 ) ) : No typesetting found for |- ( ( [. g / f ]. f Fn 1o /\ [. g / f ]. ph' /\ [. g / f ]. ps' ) <-> ( g Fn 1o /\ ph1 /\ ps1 ) ) with typecode |- | 
						
							| 11 | 6 10 | bitri | Could not format  ( [. g / f ]. ( f Fn 1o /\ ph' /\ ps' ) <-> ( g Fn 1o /\ ph1 /\ ps1 ) ) : No typesetting found for |- ( [. g / f ]. ( f Fn 1o /\ ph' /\ ps' ) <-> ( g Fn 1o /\ ph1 /\ ps1 ) ) with typecode |- | 
						
							| 12 | 5 11 | bitri | Could not format  ( [. g / f ]. ze0 <-> ( g Fn 1o /\ ph1 /\ ps1 ) ) : No typesetting found for |- ( [. g / f ]. ze0 <-> ( g Fn 1o /\ ph1 /\ ps1 ) ) with typecode |- | 
						
							| 13 | 2 12 | bitri | Could not format  ( ze1 <-> ( g Fn 1o /\ ph1 /\ ps1 ) ) : No typesetting found for |- ( ze1 <-> ( g Fn 1o /\ ph1 /\ ps1 ) ) with typecode |- |