| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > ralnex | Unicode version | ||
| Description: Relationship between restricted universal and existential quantifiers. (Contributed by NM, 21-Jan-1997.) |
| Ref | Expression |
|---|---|
| ralnex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-ral 2533 |
. 2
| |
| 2 | alinexa 1656 |
. . 3
| |
| 3 | df-rex 2534 |
. . 3
| |
| 4 | 2, 3 | xchbinxr 694 |
. 2
|
| 5 | 1, 4 | bitri 184 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 623 ax-in2 624 ax-5 1500 ax-gen 1502 ax-ie2 1547 |
| This proof depends on definitions: df-bi 117 df-tru 1405 df-fal 1408 df-ral 2533 df-rex 2534 |
| This theorem is used by: nnral 2540 rexalim 2543 ralinexa 2577 nrex 2642 nrexdv 2643 ralnex2 2690 r19.30dc 2698 uni0b 3960 iindif2m 4080 f0rn0 5587 supmoti 7333 fodjuomnilemdc 7484 ismkvnex 7495 nninfwlpoimlemginf 7516 suprnubex 9283 icc0r 10328 ioo0 10694 ico0 10696 ioc0 10697 prmind2 12898 sqrt2irr 12940 umgrnloop0 16358 vtxd0nedgbfi 16540 1hevtxdg0fi 16548 nconstwlpolem 17115 |
| Copyright terms: Public domain | W3C validator |