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Mirrors > Home > MPE Home > Th. List > addassd | Structured version Visualization version Unicode version |
Description: Associative law for addition. (Contributed by Mario Carneiro, 27-May-2016.) |
Ref | Expression |
---|---|
addcld.1 | |
addcld.2 | |
addassd.3 |
Ref | Expression |
---|---|
addassd |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | addcld.1 | . 2 | |
2 | addcld.2 | . 2 | |
3 | addassd.3 | . 2 | |
4 | addass 10023 | . 2 | |
5 | 1, 2, 3, 4 | syl3anc 1326 | 1 |
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