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| Description: Commute two sides of a biconditional in a deduction. |
| Ref | Expression |
|---|---|
| bicomd.1 |
|
| Ref | Expression |
|---|---|
| bicomd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | bicomd.1 |
. 2
| |
| 2 | bicom 519 |
. 2
| |
| 3 | 1, 2 | sylib 198 |
1
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| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: con1bid 526 bitr2d 528 bitr3d 529 bitr4d 530 syl5rbb 532 syl6rbb 536 ibir 592 pm5.54 682 baibr 685 pm5.5 731 bimsc1 749 ninba 768 sbco 1251 sbidm 1253 sbco2 1254 necon3bbid 1598 gencbvex 1835 clel3g 1889 moi2 1921 moi 1922 reu8 1933 sbhypf 1936 sbhyp 1937 r19.9rzv 2346 ifboth 2372 iununi 2612 poeq2 2839 soeq2 2850 freq2 2919 tfinds2 3161 ralxpf 3216 fconstfv 3844 isoid 3890 isoini 3895 isowe 3898 f1oweALT 3901 tfrlem5 3910 oaword 4176 oalimcl 4187 omword 4194 oeword 4210 nnaordex 4242 nnawordex 4243 pw2en 4435 carduni 4841 aleph11 4862 alephval3 4886 axrepndlem2 4928 lttri2t 5496 xrlttri2t 5538 muln0bt 5676 lemul1t 5798 lt2msq 5839 msq11 5841 nn0ind-raph 6172 rebtwnz 6180 qrecclt 6223 qsqueeze 6230 om2uzlt 6248 expne0tOLD 6532 2climnn 7055 2climnn0 7056 znnen 7462 gch-kn 7547 bastop 7602 iscld2 7630 isopn2 7633 lmclimnn 7926 norm-it 8951 nmopgt0t 9793 elnlfnt 9809 irred 10277 ompfl3 10385 rcla4devOLD 10389 infi1 10405 fiiu 10408 cmpfun 10421 cdrci 10440 hmph 10470 cnvhmph 10473 hmeogrp 10484 fillsb 10494 cnfilca 10510 rcfpfil 10517 mslb1 10545 isfuna 10664 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 |
| This theorem depends on definitions: df-bi 147 df-an 225 |