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| 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 2515 |
. 2
| |
| 2 | alinexa 1651 |
. . 3
| |
| 3 | df-rex 2516 |
. . 3
| |
| 4 | 2, 3 | xchbinxr 689 |
. 2
|
| 5 | 1, 4 | bitri 184 |
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-in1 619 ax-in2 620 ax-5 1495 ax-gen 1497 ax-ie2 1542 |
| This theorem depends on definitions: df-bi 117 df-tru 1400 df-fal 1403 df-ral 2515 df-rex 2516 |
| This theorem is referenced by: nnral 2522 rexalim 2525 ralinexa 2559 nrex 2624 nrexdv 2625 ralnex2 2672 r19.30dc 2680 uni0b 3918 iindif2m 4038 f0rn0 5531 supmoti 7192 fodjuomnilemdc 7343 ismkvnex 7354 nninfwlpoimlemginf 7375 suprnubex 9133 icc0r 10161 ioo0 10520 ico0 10522 ioc0 10523 prmind2 12710 sqrt2irr 12752 umgrnloop0 15987 vtxd0nedgbfi 16169 1hevtxdg0fi 16177 nconstwlpolem 16721 |
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