| Step | Hyp | Ref | Expression | 
						
							| 1 |  | oddz |  | 
						
							| 2 |  | 5nn |  | 
						
							| 3 | 2 | nnzi |  | 
						
							| 4 |  | zltp1le |  | 
						
							| 5 | 3 4 | mpan |  | 
						
							| 6 |  | 5p1e6 |  | 
						
							| 7 | 6 | breq1i |  | 
						
							| 8 |  | 6re |  | 
						
							| 9 | 8 | a1i |  | 
						
							| 10 |  | zre |  | 
						
							| 11 | 9 10 | leloed |  | 
						
							| 12 | 7 11 | bitrid |  | 
						
							| 13 |  | 6nn |  | 
						
							| 14 | 13 | nnzi |  | 
						
							| 15 |  | zltp1le |  | 
						
							| 16 | 14 15 | mpan |  | 
						
							| 17 |  | 6p1e7 |  | 
						
							| 18 | 17 | breq1i |  | 
						
							| 19 |  | 7re |  | 
						
							| 20 | 19 | a1i |  | 
						
							| 21 | 20 10 | leloed |  | 
						
							| 22 | 18 21 | bitrid |  | 
						
							| 23 |  | simpr |  | 
						
							| 24 |  | 3odd |  | 
						
							| 25 | 23 24 | jctir |  | 
						
							| 26 |  | omoeALTV |  | 
						
							| 27 |  | breq2 |  | 
						
							| 28 |  | eleq1 |  | 
						
							| 29 | 27 28 | imbi12d |  | 
						
							| 30 | 29 | rspcv |  | 
						
							| 31 | 25 26 30 | 3syl |  | 
						
							| 32 |  | 4p3e7 |  | 
						
							| 33 | 32 | eqcomi |  | 
						
							| 34 | 33 | breq1i |  | 
						
							| 35 |  | 4re |  | 
						
							| 36 | 35 | a1i |  | 
						
							| 37 |  | 3re |  | 
						
							| 38 | 37 | a1i |  | 
						
							| 39 |  | ltaddsub |  | 
						
							| 40 | 39 | biimpd |  | 
						
							| 41 | 36 38 10 40 | syl3anc |  | 
						
							| 42 | 34 41 | biimtrid |  | 
						
							| 43 | 42 | impcom |  | 
						
							| 44 | 43 | adantr |  | 
						
							| 45 |  | pm2.27 |  | 
						
							| 46 | 44 45 | syl |  | 
						
							| 47 |  | isgbe |  | 
						
							| 48 |  | 3prm |  | 
						
							| 49 | 48 | a1i |  | 
						
							| 50 |  | zcn |  | 
						
							| 51 |  | 3cn |  | 
						
							| 52 | 50 51 | jctir |  | 
						
							| 53 |  | npcan |  | 
						
							| 54 | 53 | eqcomd |  | 
						
							| 55 | 52 54 | syl |  | 
						
							| 56 |  | oveq2 |  | 
						
							| 57 | 56 | eqcoms |  | 
						
							| 58 | 55 57 | sylan9eq |  | 
						
							| 59 | 49 58 | rspcedeq2vd |  | 
						
							| 60 |  | oveq1 |  | 
						
							| 61 | 60 | eqeq2d |  | 
						
							| 62 | 61 | rexbidv |  | 
						
							| 63 | 59 62 | imbitrid |  | 
						
							| 64 | 63 | 3ad2ant3 |  | 
						
							| 65 | 64 | com12 |  | 
						
							| 66 | 65 | ad4antlr |  | 
						
							| 67 | 66 | reximdva |  | 
						
							| 68 | 67 | reximdva |  | 
						
							| 69 | 68 23 | jctild |  | 
						
							| 70 |  | isgbow |  | 
						
							| 71 | 69 70 | imbitrrdi |  | 
						
							| 72 | 71 | adantld |  | 
						
							| 73 | 47 72 | biimtrid |  | 
						
							| 74 | 31 46 73 | 3syld |  | 
						
							| 75 | 74 | ex |  | 
						
							| 76 | 75 | com23 |  | 
						
							| 77 | 76 | ex |  | 
						
							| 78 |  | 7gbow |  | 
						
							| 79 |  | eleq1 |  | 
						
							| 80 | 78 79 | mpbii |  | 
						
							| 81 | 80 | a1d |  | 
						
							| 82 | 81 | a1d |  | 
						
							| 83 | 82 | a1d |  | 
						
							| 84 | 77 83 | jaoi |  | 
						
							| 85 | 84 | com12 |  | 
						
							| 86 | 22 85 | sylbid |  | 
						
							| 87 | 16 86 | sylbid |  | 
						
							| 88 | 87 | com12 |  | 
						
							| 89 |  | eleq1 |  | 
						
							| 90 |  | 6even |  | 
						
							| 91 |  | evennodd |  | 
						
							| 92 | 91 | pm2.21d |  | 
						
							| 93 | 90 92 | ax-mp |  | 
						
							| 94 | 89 93 | biimtrrdi |  | 
						
							| 95 | 94 | a1d |  | 
						
							| 96 | 95 | a1d |  | 
						
							| 97 | 88 96 | jaoi |  | 
						
							| 98 | 97 | com12 |  | 
						
							| 99 | 12 98 | sylbid |  | 
						
							| 100 | 5 99 | sylbid |  | 
						
							| 101 | 100 | com24 |  | 
						
							| 102 | 1 101 | mpcom |  | 
						
							| 103 | 102 | impcom |  | 
						
							| 104 | 103 | ralrimiva |  |