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Mirrors > Home > NFE Home > Th. List > r19.40 | Unicode version |
Description: Restricted quantifier version of Theorem 19.40 of [Margaris] p. 90. (Contributed by NM, 2-Apr-2004.) |
Ref | Expression |
---|---|
r19.40 |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simpl 443 |
. . 3
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2 | 1 | reximi 2722 |
. 2
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3 | simpr 447 |
. . 3
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4 | 3 | reximi 2722 |
. 2
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5 | 2, 4 | jca 518 |
1
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Colors of variables: wff setvar class |
Syntax hints: ![]() ![]() ![]() |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1546 ax-5 1557 |
This theorem depends on definitions: df-bi 177 df-an 360 df-ex 1542 df-ral 2620 df-rex 2621 |
This theorem is referenced by: (None) |
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