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Mirrors > Home > MPE Home > Th. List > syl5sseqr | Structured version Visualization version Unicode version |
Description: Subclass transitivity deduction. (Contributed by Jonathan Ben-Naim, 3-Jun-2011.) |
Ref | Expression |
---|---|
syl5sseqr.1 | |
syl5sseqr.2 |
Ref | Expression |
---|---|
syl5sseqr |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | syl5sseqr.1 | . . 3 | |
2 | 1 | a1i 11 | . 2 |
3 | syl5sseqr.2 | . 2 | |
4 | 2, 3 | sseqtr4d 3642 | 1 |
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