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| Description: Deduction adding a consequent to both sides of a logical equivalence. |
| Ref | Expression |
|---|---|
| bid.1 |
|
| Ref | Expression |
|---|---|
| imbi1d |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bid.1 |
. . . 4
| |
| 2 | 1 | negbid 463 |
. . 3
|
| 3 | 2 | imbi2d 464 |
. 2
|
| 4 | pm4.1 143 |
. 2
| |
| 5 | pm4.1 143 |
. 2
| |
| 6 | 3, 4, 5 | 3bitr4g 428 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: bibi2d 470 imbi1 472 imbi12d 474 elimant 505 con3th 573 rgen2 1248 ralcom2 1314 raleqf 1321 alexeq 1409 mo2icl 1434 sbc19.21g 1470 rax4 1471 ssexg 1702 opth2 1909 ssuni 1937 trel 2048 pocl 2132 so 2152 supmo 2156 supub 2160 suplub 2161 supsn 2168 onminex 2275 dfom2 2374 findsg 2398 tfindsg 2402 tfindsg2 2403 vtoclr 2449 f1fv 2916 caoprcan 3069 ertr 3211 ecoptocl 3239 ecopoprtrn 3247 dom2d 3307 fiint 3445 karden 3551 aceq1 3552 zornlem1 3603 iscard2 3660 axrepndlem2 3739 axregndlem2 3749 indpi 3828 ltsopq 3869 prcdpq 3891 prlem934 3933 suppr 3957 ltsosr 3997 suppsr 4016 supsrlem6 4024 supsr 4025 supre 4054 ltsor 4055 prodgt0 4388 sqrlem20 4750 abs3lemt 4865 clim0 4882 norm3lemt 5097 chlim 5139 hlim0 5140 projlem20 5212 pjth 5239 omlsi 5250 stcltr1 5707 elat2 5739 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 |
| This theorem depends on definitions: df-bi 128 df-an 198 |