Mathbox for Wolf Lammen |
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Mirrors > Home > MPE Home > Th. List > Mathboxes > wl-ax11-lem9 | Structured version Visualization version Unicode version |
Description: The easy part when coincides with . (Contributed by Wolf Lammen, 30-Jun-2019.) |
Ref | Expression |
---|---|
wl-ax11-lem9 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | biidd 252 | . . . . 5 | |
2 | 1 | dral1 2325 | . . . 4 |
3 | 2 | aecoms 2312 | . . 3 |
4 | 3 | dral1 2325 | . 2 |
5 | 4 | aecoms 2312 | 1 |
Colors of variables: wff setvar class |
Syntax hints: wi 4 wb 196 wal 1481 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1722 ax-4 1737 ax-5 1839 ax-6 1888 ax-7 1935 ax-10 2019 ax-12 2047 ax-13 2246 |
This theorem depends on definitions: df-bi 197 df-or 385 df-an 386 df-ex 1705 df-nf 1710 |
This theorem is referenced by: (None) |
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