| Step | Hyp | Ref | Expression | 
						
							| 1 |  | elreal |  | 
						
							| 2 |  | elreal |  | 
						
							| 3 |  | elreal |  | 
						
							| 4 |  | breq1 |  | 
						
							| 5 |  | oveq2 |  | 
						
							| 6 | 5 | breq1d |  | 
						
							| 7 | 4 6 | bibi12d |  | 
						
							| 8 |  | breq2 |  | 
						
							| 9 |  | oveq2 |  | 
						
							| 10 | 9 | breq2d |  | 
						
							| 11 | 8 10 | bibi12d |  | 
						
							| 12 |  | oveq1 |  | 
						
							| 13 |  | oveq1 |  | 
						
							| 14 | 12 13 | breq12d |  | 
						
							| 15 | 14 | bibi2d |  | 
						
							| 16 |  | ltasr |  | 
						
							| 17 | 16 | adantr |  | 
						
							| 18 |  | ltresr |  | 
						
							| 19 | 18 | a1i |  | 
						
							| 20 |  | addresr |  | 
						
							| 21 |  | addresr |  | 
						
							| 22 | 20 21 | breqan12d |  | 
						
							| 23 | 22 | anandis |  | 
						
							| 24 |  | ltresr |  | 
						
							| 25 | 23 24 | bitrdi |  | 
						
							| 26 | 17 19 25 | 3bitr4d |  | 
						
							| 27 | 26 | ancoms |  | 
						
							| 28 | 27 | 3impa |  | 
						
							| 29 | 1 2 3 7 11 15 28 | 3gencl |  | 
						
							| 30 | 29 | biimpd |  |