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| Description: Deduce a commuted implication from a logical equivalence. |
| Ref | Expression |
|---|---|
| biimpd.1 |
|
| Ref | Expression |
|---|---|
| biimpcd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | biimpd.1 |
. . 3
| |
| 2 | 1 | biimpd 151 |
. 2
|
| 3 | 2 | com12 11 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: biimpac 418 nbn2 726 ax16 1246 ax16i 1308 nelneq 1604 nelneq2 1605 psssstr 2204 disjsn 2502 mosubopt 2881 tz7.7 3001 limsssuc 3204 nnsuc 3235 peano5 3241 asymref2 3532 ssimaex 3879 chfnrn 3916 ffnfv 3942 cbvfo 3999 elopabi 4179 eloprabi 4180 odi 4346 ereldm 4425 eceqopreq 4454 pssnn 4681 zorn2lem6 4939 alephval3 5053 prub 5252 prnmadd 5254 prlem936 5309 letr 5679 ssxr 5694 xrletr 5718 snunioolem 6541 facwordi 7147 climsupi 7358 dscmet 8129 pjpj0i 9531 5oalem6 9882 eigorthi 10043 adjbd1o 10297 atcvatlem 10594 mdsymlem3 10614 dmdbr7ati 10633 fiiu 10738 ref3w 10772 mlteqer 10789 eloi 10817 fiiu2 10852 ismgm 10897 ismnd2 10928 hmeobc 11048 fgsb 11082 fgsb2 11086 altretoplem2 11143 fiuni 11420 elfiun 11421 alexsublem2 11497 1stcclb 11532 filssufillem 11655 filcon 11665 isga 11772 f1elima 11818 dif1card 11835 inficl 11849 sstotbnd 11992 heiborlem10 12020 heiborlem11 12021 heiborlem13 12023 heiborlem29 12039 heiborlem41 12051 |
| 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 145 |