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| Description: Deduce a converse commuted implication from a logical equivalence. |
| Ref | Expression |
|---|---|
| biimpd.1 |
|
| Ref | Expression |
|---|---|
| biimprcd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | biimpd.1 |
. . 3
| |
| 2 | 1 | biimprd 171 |
. 2
|
| 3 | 2 | com12 14 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: biimparc 463 prlem1OLD 849 ax11i 1498 ax11eq 1754 ax11el 1755 eleq1a 1966 ceqsalg 2314 ceqsalgOLD 2315 cgsexg 2321 cgsex2g 2322 cgsex4g 2323 ceqsex 2324 cla42egv 2366 cla43egv 2368 dfiin2g 3286 onfr 3702 ordun 3771 ralxfr 3839 iunpw 3858 ssrel 4075 ssrelrel 4083 iss 4254 funcnvuni 4482 funfvop 4776 cbvfo 4861 abianfp 5171 oaordex 5240 eceqopreq 5372 fundmen 5487 nneneq 5606 unfilem1 5641 ordtypelem3 5686 tratrb 5831 omsublim 5887 ac6lem 5916 zorn2lem3 5952 zorn2lem7 5956 ltrpq 6237 genpnnp 6260 ltaddpr 6292 reclem3pr 6310 reclem4pr 6311 suppsrlem 6373 suppsr3 6376 suprelem 6411 elfz4 7645 fzsuc 7678 abslti 8127 abslei 8128 cau2i 8165 fsum1i 8265 ser1clim0 8433 unctb 8846 txbas 8933 txuni 8935 cnsscnp 9049 nmoubi 9774 dif1en 10172 uptx 10226 txcnopab 10228 ismnd2 10392 grpmnd 10393 nmopub 11469 nmfnleub 11486 mdbr3 11869 mdbr4 11870 atssma 11950 atcvatlem 11957 gcdcllem2 13719 gcdcllem3 13720 isprm2lem 13774 nepss 13820 ordsucuniel 13863 nodmon 13994 axdenselem4 14022 nocvxminlem 14028 uninqs 14340 prl2 14514 nfwpr4c 14630 fprod1i 14673 hmphre 14884 iintlem1 15010 cnvtr 15016 mrdmcd 15143 elincin 15220 isline1 15294 dfiin2gOLD 15356 ordtypelem3OLD 15377 omsublimOLD 15396 hscptsscld 15434 alexsublem2 15438 fbasfip 15556 fimax 15746 indexdom 15754 sdc 15811 fdc 15812 fsumlt1 15831 txsubsp 15912 heiborlem1 15955 heiborlem28 15982 ceqsex3OLD 16249 pm13.14 16370 smores 16446 3impexpbicomVD 16681 hbra2VD 16684 tratrbVD 16685 equncomVD 16692 trsbcVD 16701 lubun 16899 lubunNEW 16900 ispsubcl2 17356 |
| 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 |