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Mirrors > Home > MPE Home > Th. List > anim2i | Structured version Visualization version Unicode version |
Description: Introduce conjunct to both sides of an implication. (Contributed by NM, 3-Jan-1993.) |
Ref | Expression |
---|---|
anim1i.1 |
Ref | Expression |
---|---|
anim2i |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | id 22 | . 2 | |
2 | anim1i.1 | . 2 | |
3 | 1, 2 | anim12i 590 | 1 |
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