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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 2490 |
. 2
| |
| 2 | alinexa 1627 |
. . 3
| |
| 3 | df-rex 2491 |
. . 3
| |
| 4 | 2, 3 | xchbinxr 685 |
. 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 615 ax-in2 616 ax-5 1471 ax-gen 1473 ax-ie2 1518 |
| This theorem depends on definitions: df-bi 117 df-tru 1376 df-fal 1379 df-ral 2490 df-rex 2491 |
| This theorem is referenced by: nnral 2497 rexalim 2500 ralinexa 2534 nrex 2599 nrexdv 2600 ralnex2 2646 r19.30dc 2654 uni0b 3884 iindif2m 4004 f0rn0 5487 supmoti 7116 fodjuomnilemdc 7267 ismkvnex 7278 nninfwlpoimlemginf 7299 suprnubex 9056 icc0r 10078 ioo0 10434 ico0 10436 ioc0 10437 prmind2 12527 sqrt2irr 12569 nconstwlpolem 16176 |
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