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Mirrors > Home > MPE Home > Th. List > hbsb2e | Structured version Visualization version Unicode version |
Description: Special case of a bound-variable hypothesis builder for substitution. (Contributed by NM, 2-Feb-2007.) |
Ref | Expression |
---|---|
hbsb2e |
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Step | Hyp | Ref | Expression |
---|---|---|---|
1 | sb4e 2087 |
. 2
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2 | sb2 2182 |
. . 3
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3 | 2 | axc4i 1979 |
. 2
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4 | 1, 3 | syl 17 |
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 1668 ax-4 1681 ax-5 1757 ax-6 1804 ax-7 1850 ax-10 1914 ax-12 1932 ax-13 2090 |
This theorem depends on definitions: df-bi 189 df-an 373 df-ex 1663 df-nf 1667 df-sb 1797 |
This theorem is referenced by: (None) |
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