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Mirrors > Home > ILE Home > Th. List > r19.23 | Unicode version |
Description: Theorem 19.23 of [Margaris] p. 90 with restricted quantifiers. (Contributed by NM, 22-Oct-2010.) (Proof shortened by Mario Carneiro, 8-Oct-2016.) |
Ref | Expression |
---|---|
r19.23.1 |
Ref | Expression |
---|---|
r19.23 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | r19.23.1 | . 2 | |
2 | r19.23t 2537 | . 2 | |
3 | 1, 2 | ax-mp 5 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wb 104 wnf 1436 wral 2414 wrex 2415 |
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-5 1423 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-4 1487 ax-ial 1514 ax-i5r 1515 |
This theorem depends on definitions: df-bi 116 df-nf 1437 df-ral 2419 df-rex 2420 |
This theorem is referenced by: r19.23v 2539 rexlimi 2540 rexlimd 2544 |
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