| Step | Hyp | Ref | Expression | 
						
							| 1 |  | df-intop |  | 
						
							| 2 | 1 | elmpocl | Could not format  ( .o. e. ( M intOp N ) -> ( M e. _V /\ N e. _V ) ) : No typesetting found for |- ( .o. e. ( M intOp N ) -> ( M e. _V /\ N e. _V ) ) with typecode |- | 
						
							| 3 |  | intopval |  | 
						
							| 4 | 3 | eleq2d | Could not format  ( ( M e. _V /\ N e. _V ) -> ( .o. e. ( M intOp N ) <-> .o. e. ( N ^m ( M X. M ) ) ) ) : No typesetting found for |- ( ( M e. _V /\ N e. _V ) -> ( .o. e. ( M intOp N ) <-> .o. e. ( N ^m ( M X. M ) ) ) ) with typecode |- | 
						
							| 5 |  | elmapi | Could not format  ( .o. e. ( N ^m ( M X. M ) ) -> .o. : ( M X. M ) --> N ) : No typesetting found for |- ( .o. e. ( N ^m ( M X. M ) ) -> .o. : ( M X. M ) --> N ) with typecode |- | 
						
							| 6 | 4 5 | biimtrdi | Could not format  ( ( M e. _V /\ N e. _V ) -> ( .o. e. ( M intOp N ) -> .o. : ( M X. M ) --> N ) ) : No typesetting found for |- ( ( M e. _V /\ N e. _V ) -> ( .o. e. ( M intOp N ) -> .o. : ( M X. M ) --> N ) ) with typecode |- | 
						
							| 7 | 2 6 | mpcom | Could not format  ( .o. e. ( M intOp N ) -> .o. : ( M X. M ) --> N ) : No typesetting found for |- ( .o. e. ( M intOp N ) -> .o. : ( M X. M ) --> N ) with typecode |- |