| Step | Hyp | Ref | Expression | 
						
							| 1 |  | rpnnen2.1 |  | 
						
							| 2 |  | ovex |  | 
						
							| 3 |  | elpwi |  | 
						
							| 4 |  | nnuz |  | 
						
							| 5 | 4 | sumeq1i |  | 
						
							| 6 |  | 1nn |  | 
						
							| 7 | 1 | rpnnen2lem6 |  | 
						
							| 8 | 6 7 | mpan2 |  | 
						
							| 9 | 5 8 | eqeltrid |  | 
						
							| 10 | 3 9 | syl |  | 
						
							| 11 |  | 1zzd |  | 
						
							| 12 |  | eqidd |  | 
						
							| 13 | 1 | rpnnen2lem2 |  | 
						
							| 14 | 3 13 | syl |  | 
						
							| 15 | 14 | ffvelcdmda |  | 
						
							| 16 | 1 | rpnnen2lem5 |  | 
						
							| 17 | 3 6 16 | sylancl |  | 
						
							| 18 |  | ssid |  | 
						
							| 19 | 1 | rpnnen2lem4 |  | 
						
							| 20 | 18 19 | mp3an2 |  | 
						
							| 21 | 20 | simpld |  | 
						
							| 22 | 3 21 | sylan |  | 
						
							| 23 | 4 11 12 15 17 22 | isumge0 |  | 
						
							| 24 |  | halfre |  | 
						
							| 25 | 24 | a1i |  | 
						
							| 26 |  | 1re |  | 
						
							| 27 | 26 | a1i |  | 
						
							| 28 | 1 | rpnnen2lem7 |  | 
						
							| 29 | 18 6 28 | mp3an23 |  | 
						
							| 30 | 3 29 | syl |  | 
						
							| 31 |  | eqid |  | 
						
							| 32 |  | eqidd |  | 
						
							| 33 |  | elnnuz |  | 
						
							| 34 | 1 | rpnnen2lem2 |  | 
						
							| 35 | 18 34 | ax-mp |  | 
						
							| 36 | 35 | ffvelcdmi |  | 
						
							| 37 | 36 | recnd |  | 
						
							| 38 | 33 37 | sylbir |  | 
						
							| 39 | 38 | adantl |  | 
						
							| 40 | 1 | rpnnen2lem3 |  | 
						
							| 41 | 40 | a1i |  | 
						
							| 42 | 31 11 32 39 41 | isumclim |  | 
						
							| 43 | 30 42 | breqtrd |  | 
						
							| 44 | 5 43 | eqbrtrid |  | 
						
							| 45 |  | halflt1 |  | 
						
							| 46 | 24 26 45 | ltleii |  | 
						
							| 47 | 46 | a1i |  | 
						
							| 48 | 10 25 27 44 47 | letrd |  | 
						
							| 49 |  | elicc01 |  | 
						
							| 50 | 10 23 48 49 | syl3anbrc |  | 
						
							| 51 |  | elpwi |  | 
						
							| 52 |  | ssdifss |  | 
						
							| 53 |  | ssdifss |  | 
						
							| 54 |  | unss |  | 
						
							| 55 | 54 | biimpi |  | 
						
							| 56 | 52 53 55 | syl2an |  | 
						
							| 57 | 3 51 56 | syl2an |  | 
						
							| 58 |  | eqss |  | 
						
							| 59 |  | ssdif0 |  | 
						
							| 60 |  | ssdif0 |  | 
						
							| 61 | 59 60 | anbi12i |  | 
						
							| 62 |  | un00 |  | 
						
							| 63 | 58 61 62 | 3bitri |  | 
						
							| 64 | 63 | necon3bii |  | 
						
							| 65 | 64 | biimpi |  | 
						
							| 66 |  | nnwo |  | 
						
							| 67 | 57 65 66 | syl2an |  | 
						
							| 68 | 67 | ex |  | 
						
							| 69 | 57 | sselda |  | 
						
							| 70 |  | df-ral |  | 
						
							| 71 |  | con34b |  | 
						
							| 72 |  | eldif |  | 
						
							| 73 |  | eldif |  | 
						
							| 74 | 72 73 | orbi12i |  | 
						
							| 75 |  | elun |  | 
						
							| 76 |  | xor |  | 
						
							| 77 | 74 75 76 | 3bitr4ri |  | 
						
							| 78 | 77 | con1bii |  | 
						
							| 79 | 78 | imbi2i |  | 
						
							| 80 | 71 79 | bitri |  | 
						
							| 81 | 80 | albii |  | 
						
							| 82 | 70 81 | bitri |  | 
						
							| 83 |  | alral |  | 
						
							| 84 |  | nnre |  | 
						
							| 85 |  | nnre |  | 
						
							| 86 |  | ltnle |  | 
						
							| 87 | 84 85 86 | syl2anr |  | 
						
							| 88 | 87 | imbi1d |  | 
						
							| 89 | 88 | ralbidva |  | 
						
							| 90 | 83 89 | imbitrrid |  | 
						
							| 91 | 82 90 | biimtrid |  | 
						
							| 92 | 69 91 | syl |  | 
						
							| 93 | 92 | reximdva |  | 
						
							| 94 | 68 93 | syld |  | 
						
							| 95 |  | rexun |  | 
						
							| 96 | 94 95 | imbitrdi |  | 
						
							| 97 |  | simpll |  | 
						
							| 98 |  | simplr |  | 
						
							| 99 |  | simprl |  | 
						
							| 100 |  | simprr |  | 
						
							| 101 |  | biid |  | 
						
							| 102 | 1 97 98 99 100 101 | rpnnen2lem11 |  | 
						
							| 103 | 102 | rexlimdvaa |  | 
						
							| 104 |  | simplr |  | 
						
							| 105 |  | simpll |  | 
						
							| 106 |  | simprl |  | 
						
							| 107 |  | simprr |  | 
						
							| 108 |  | bicom |  | 
						
							| 109 | 108 | imbi2i |  | 
						
							| 110 | 109 | ralbii |  | 
						
							| 111 | 107 110 | sylibr |  | 
						
							| 112 |  | eqcom |  | 
						
							| 113 | 1 104 105 106 111 112 | rpnnen2lem11 |  | 
						
							| 114 | 113 | rexlimdvaa |  | 
						
							| 115 | 103 114 | jaod |  | 
						
							| 116 | 3 51 115 | syl2an |  | 
						
							| 117 | 96 116 | syld |  | 
						
							| 118 | 117 | necon4ad |  | 
						
							| 119 |  | fveq2 |  | 
						
							| 120 | 119 | fveq1d |  | 
						
							| 121 | 120 | sumeq2sdv |  | 
						
							| 122 | 118 121 | impbid1 |  | 
						
							| 123 | 50 122 | dom2 |  | 
						
							| 124 | 2 123 | ax-mp |  |