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Mirrors > Home > ILE Home > Th. List > ifcldadc | Unicode version |
Description: Conditional closure. (Contributed by Jim Kingdon, 11-Jan-2022.) |
Ref | Expression |
---|---|
ifcldadc.1 | |
ifcldadc.2 | |
ifcldadc.dc | DECID |
Ref | Expression |
---|---|
ifcldadc |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | iftrue 3474 | . . . 4 | |
2 | 1 | adantl 275 | . . 3 |
3 | ifcldadc.1 | . . 3 | |
4 | 2, 3 | eqeltrd 2214 | . 2 |
5 | iffalse 3477 | . . . 4 | |
6 | 5 | adantl 275 | . . 3 |
7 | ifcldadc.2 | . . 3 | |
8 | 6, 7 | eqeltrd 2214 | . 2 |
9 | ifcldadc.dc | . . 3 DECID | |
10 | exmiddc 821 | . . 3 DECID | |
11 | 9, 10 | syl 14 | . 2 |
12 | 4, 8, 11 | mpjaodan 787 | 1 |
Colors of variables: wff set class |
Syntax hints: wn 3 wi 4 wa 103 wo 697 DECID wdc 819 wceq 1331 wcel 1480 cif 3469 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-11 1484 ax-4 1487 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2119 |
This theorem depends on definitions: df-bi 116 df-dc 820 df-nf 1437 df-sb 1736 df-clab 2124 df-cleq 2130 df-clel 2133 df-if 3470 |
This theorem is referenced by: updjudhf 6957 omp1eomlem 6972 difinfsnlem 6977 ctmlemr 6986 ctssdclemn0 6988 ctssdc 6991 enumctlemm 6992 xaddf 9620 xaddval 9621 iseqf1olemqcl 10252 iseqf1olemnab 10254 iseqf1olemjpcl 10261 iseqf1olemqpcl 10262 seq3f1oleml 10269 seq3f1o 10270 exp3val 10288 xrmaxiflemcl 11007 summodclem2a 11143 zsumdc 11146 fsum3 11149 isumss 11153 fsum3cvg2 11156 fsum3ser 11159 fsumcl2lem 11160 fsumadd 11168 sumsnf 11171 sumsplitdc 11194 fsummulc2 11210 isumlessdc 11258 cvgratz 11294 eucalgval2 11723 lcmval 11733 ennnfonelemg 11905 subctctexmid 13185 |
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