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| Mirrors > Home > ILE Home > Th. List > addassd | 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 8309 |
. 2
| |
| 5 | 1, 2, 3, 4 | syl3anc 1278 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-addass 8281 |
| This proof depends on definitions: df-bi 117 df-3an 1011 |
| This theorem is used by: readdcan 8467 muladd11r 8483 cnegexlem1 8502 cnegex 8505 addcan 8507 addcan2 8508 negeu 8518 addsubass 8537 nppcan3 8551 muladd 8712 ltadd2 8748 add1p1 9559 div4p1lem1div2 9563 peano2z 9684 zaddcllempos 9685 zpnn0elfzo1 10636 exbtwnzlemstep 10692 rebtwn2zlemstep 10697 flhalf 10750 flqdiv 10771 binom2 11101 binom3 11107 bernneq 11111 omgadd 11256 ccatass 11390 cvg1nlemres 11765 recvguniqlem 11774 resqrexlemover 11790 bdtrilem 12021 bdtri 12022 bcxmas 12272 efsep 12474 efi4p 12500 efival 12515 divalglemnqt 12703 flodddiv4 12719 gcdaddm 12777 pcadd2 13140 4sqlem11 13200 limcimolemlt 15814 tangtx 15989 logfac 16048 binom4 16138 ppiqub 16194 bcp1ctr 16204 2lgslem3c 16312 2lgslem3d 16313 qdiff 17196 |
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