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| Mirrors > Home > ILE Home > Th. List > ifcldcd | Unicode version | ||
| Description: Membership (closure) of a conditional operator, deduction form. (Contributed by Jim Kingdon, 8-Aug-2021.) |
| Ref | Expression |
|---|---|
| ifcldcd.a |
|
| ifcldcd.b |
|
| ifcldcd.dc |
|
| Ref | Expression |
|---|---|
| ifcldcd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | iftrue 3629 |
. . . 4
| |
| 2 | 1 | adantl 277 |
. . 3
|
| 3 | ifcldcd.a |
. . . 4
| |
| 4 | 3 | adantr 276 |
. . 3
|
| 5 | 2, 4 | eqeltrd 2311 |
. 2
|
| 6 | iffalse 3632 |
. . . 4
| |
| 7 | 6 | adantl 277 |
. . 3
|
| 8 | ifcldcd.b |
. . . 4
| |
| 9 | 8 | adantr 276 |
. . 3
|
| 10 | 7, 9 | eqeltrd 2311 |
. 2
|
| 11 | ifcldcd.dc |
. . 3
| |
| 12 | df-dc 843 |
. . 3
| |
| 13 | 11, 12 | sylib 122 |
. 2
|
| 14 | 5, 10, 13 | mpjaodan 806 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-11 1555 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-ext 2216 |
| This theorem depends on definitions: df-bi 117 df-dc 843 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-if 3623 |
| This theorem is referenced by: pw2f1odclem 7089 fimax2gtrilemstep 7160 snopfsuppdc 7254 2omap 7271 nnnninf 7419 nnnninfeq 7421 fodjuf 7438 fodjum 7439 fodju0 7440 mkvprop 7451 nninfwlporlemd 7465 nninfwlporlem 7466 nninfwlpoimlemg 7468 nninfwlpoimlemginf 7469 xaddf 10180 xaddval 10181 nninfinf 10809 seqf1oglem1 10885 seqf1oglem2 10886 uzin2 11676 fsum3ser 12087 fsumsplit 12097 explecnv 12195 fprodsplitdc 12286 nninfctlemfo 12740 pcmpt2 13046 ennnfonelemp1 13174 opifismgmdc 13601 psr1clfi 14860 elply2 15617 ply1term 15625 plyaddlem1 15629 plyaddlem 15631 lgsval 15894 lgsfvalg 15895 lgsfcl2 15896 lgscllem 15897 lgsval2lem 15900 lgsneg 15914 lgsdilem 15917 lgsdir2 15923 lgsdir 15925 lgsdi 15927 lgsne0 15928 gausslemma2dlem1cl 15949 gausslemma2dlem4 15954 eupth2lemsfi 16490 bj-charfundc 16595 nnsf 16800 peano4nninf 16801 nninfsellemcl 16806 nninffeq 16815 dceqnconst 16863 dcapnconst 16864 |
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