| Step | Hyp | Ref | Expression | 
						
							| 1 |  | cnmpt21.j |  | 
						
							| 2 |  | cnmpt21.k |  | 
						
							| 3 |  | cnmpt21.a |  | 
						
							| 4 |  | cnmpt2t.b |  | 
						
							| 5 |  | cnmpt22.l |  | 
						
							| 6 |  | cnmpt22.m |  | 
						
							| 7 |  | cnmpt22.c |  | 
						
							| 8 |  | cnmpt22.d |  | 
						
							| 9 |  | df-ov |  | 
						
							| 10 |  | txtopon |  | 
						
							| 11 | 1 2 10 | syl2anc |  | 
						
							| 12 |  | cnf2 |  | 
						
							| 13 | 11 5 3 12 | syl3anc |  | 
						
							| 14 |  | eqid |  | 
						
							| 15 | 14 | fmpo |  | 
						
							| 16 | 13 15 | sylibr |  | 
						
							| 17 |  | rsp2 |  | 
						
							| 18 | 16 17 | syl |  | 
						
							| 19 | 18 | 3impib |  | 
						
							| 20 |  | cnf2 |  | 
						
							| 21 | 11 6 4 20 | syl3anc |  | 
						
							| 22 |  | eqid |  | 
						
							| 23 | 22 | fmpo |  | 
						
							| 24 | 21 23 | sylibr |  | 
						
							| 25 |  | rsp2 |  | 
						
							| 26 | 24 25 | syl |  | 
						
							| 27 | 26 | 3impib |  | 
						
							| 28 | 19 27 | jca |  | 
						
							| 29 |  | txtopon |  | 
						
							| 30 | 5 6 29 | syl2anc |  | 
						
							| 31 |  | cntop2 |  | 
						
							| 32 | 7 31 | syl |  | 
						
							| 33 |  | toptopon2 |  | 
						
							| 34 | 32 33 | sylib |  | 
						
							| 35 |  | cnf2 |  | 
						
							| 36 | 30 34 7 35 | syl3anc |  | 
						
							| 37 |  | eqid |  | 
						
							| 38 | 37 | fmpo |  | 
						
							| 39 | 36 38 | sylibr |  | 
						
							| 40 |  | r2al |  | 
						
							| 41 | 39 40 | sylib |  | 
						
							| 42 | 41 | 3ad2ant1 |  | 
						
							| 43 |  | eleq1 |  | 
						
							| 44 |  | eleq1 |  | 
						
							| 45 | 43 44 | bi2anan9 |  | 
						
							| 46 | 8 | eleq1d |  | 
						
							| 47 | 45 46 | imbi12d |  | 
						
							| 48 | 47 | spc2gv |  | 
						
							| 49 | 28 42 28 48 | syl3c |  | 
						
							| 50 | 8 37 | ovmpoga |  | 
						
							| 51 | 19 27 49 50 | syl3anc |  | 
						
							| 52 | 9 51 | eqtr3id |  | 
						
							| 53 | 52 | mpoeq3dva |  | 
						
							| 54 | 1 2 3 4 | cnmpt2t |  | 
						
							| 55 | 1 2 54 7 | cnmpt21f |  | 
						
							| 56 | 53 55 | eqeltrrd |  |