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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 579 |
. 2
| |
| 3 | 1, 2 | sylib 215 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: con1bid 586 bitr2d 588 bitr3d 589 bitr4d 590 syl5rbb 592 syl6rbb 596 ibir 653 pm5.54 747 baibr 750 pm5.5 804 bimsc1 823 ninba 847 bitr3 1283 sbequ12r 1546 sbco 1625 sbidmOLD 1628 sbco2 1629 necon3bbid 2034 ralcom2 2244 gencbvex 2334 gencbvexOLD 2335 clel3g 2397 cbvab 2419 moi2 2435 moi 2436 reu8 2448 sbhypf 2452 sbcco2 2468 r19.9rzv 2963 ifboth 3002 sbcsng 3086 iununi 3331 iununiOLD 3332 opabid 3557 poeq2 3595 posn 3603 soeq2 3609 freq2 3633 tfinds2 3947 fconstfv 4825 isoid 4872 isoini 4877 isowe 4880 f1oweALT 4883 tfrlem5 5123 oawordOLD 5231 oalimcl 5242 omword 5249 oeword 5265 nnaordex 5306 nnawordex 5307 pw2en 5505 ordiso 5683 omsubsdom 5881 carduni 6010 aleph11 6027 alephval3 6051 axrepndlem2 6097 lttri2 6682 xrlttri2 6730 mulne0bOLD 6886 lemul1 7011 lemul1OLD 7012 lt2msqi 7064 msq11i 7066 nn0ind-raph 7426 zindd 7427 rebtwnz 7435 qreccl 7453 qsqueeze 7461 iooshf 7564 om2uzlti 7709 2climnn 8362 2climnn0 8363 ef01tllem2OLD 8647 znnen 8771 gch-kn 8856 bastop1 8912 iscld2 8946 isopn2 8949 lmclimnn 9242 cdrci 10182 hmph 10241 fillsb 10270 norm-i 10629 hoeq 11323 nmopgt0 11473 elnlfn 11489 irredi 11966 addltmulALT 12018 bnj1105 12921 zmodid2 13614 absdvdsb 13673 dvdsabsb 13674 infi1 14343 fiiu 14344 cnvref 14371 domtri2 14433 cmpfun 14480 mnlmxl2 14611 dutos1 14626 seqzp2 14716 curgrpact 14735 prsubrtr 14763 nelioo5 14856 cnvhmph 14881 hmeogrp 14892 cnfilca 14927 rcfpfil 14934 limfilnei 14943 invtrgrp 14979 cntrsetlem 14999 lvsovso2 15039 supnuf 15041 supexr 15043 dualalg 15131 isfuna 15182 tarax3c 15224 vtarsuelt 15272 subtr2 15353 cbvsbcOLD 15355 ordisoOLD 15374 omsubsdomOLD 15390 compsub 15431 topbasfne 15499 limfilcf 15587 fcluscf 15612 resoprab2 15710 indexa 15753 sdc 15811 fdc 15812 caushft 15851 txmet 15925 isidlc 16163 bicomddOLD 16229 prter3 16286 pm14.122a 16386 ordintdif 16440 bitr3VD 16673 lubid 16807 latlem12 16873 opcon1b 16925 isline2 17248 |
| 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 164 df-an 242 |