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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 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 5590 supmoti 7339 fodjuomnilemdc 7490 ismkvnex 7501 nninfwlpoimlemginf 7522 suprnubex 9291 icc0r 10345 ioo0 10711 ico0 10713 ioc0 10714 prmind2 12923 sqrt2irr 12966 sqrtrirr 13014 umgrnloop0 16563 vtxd0nedgbfi 16745 1hevtxdg0fi 16753 nconstwlpolem 17322 |
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