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| Mirrors > Home > ILE Home > Th. List > addcomd | Unicode version | ||
| Description: Addition is commutative. Based on ideas by Eric Schmidt. (Contributed by Scott Fenton, 3-Jan-2013.) (Revised by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| muld.1 |
|
| addcomd.2 |
|
| Ref | Expression |
|---|---|
| addcomd |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | muld.1 |
. 2
| |
| 2 | addcomd.2 |
. 2
| |
| 3 | addcom 8471 |
. 2
| |
| 4 | 1, 2, 3 | syl2anc 415 |
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-ia3 108 ax-addcom 8286 |
| This theorem is used by: muladd11r 8490 comraddd 8491 subadd2 8538 pncan 8540 npcan 8543 subcan 8589 mvlladdd 8699 subaddeqd 8703 addrsub 8705 ltadd1 8765 leadd2 8767 ltsubadd2 8769 lesubadd2 8771 lesub3d 8899 mulreim 8941 apadd2 8946 recp1lt1 9238 ltaddrp2d 10149 lincmb01cmp 10422 iccf1o 10424 elfzoext 10627 rebtwn2zlemstep 10704 qavgle 10710 modqaddabs 10820 mulqaddmodid 10822 qnegmod 10827 modqadd2mod 10832 modqadd12d 10838 modqaddmulmod 10849 addmodlteq 10856 expaddzap 11041 bcn2m1 11230 bcn2p1 11231 lenrevpfxcctswrd 11506 remullem 11658 resqrexlemover 11798 maxabslemab 11995 maxabslemval 11997 bdtrilem 12030 climaddc2 12121 telfsumo 12258 fsumparts 12262 bcxmas 12281 isumshft 12282 cvgratnnlemsumlt 12320 cosneg 12519 sinadd 12528 sincossq 12540 cos2t 12542 absefi 12561 absefib 12563 gcdaddm 12786 pythagtrip 13091 pcadd2 13149 ballotfilemsdom 13313 mulgnndir 14013 mulgdirlem 14015 metrtri 15636 plymullem1 16007 efap1p 16038 pellexlem2 16263 bposlem9 16352 lgseisenlem1 16427 2sqlem3 16474 eupth2lem3lem3fi 16949 apdifflemf 17335 apdiff 17337 |
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