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| Mirrors > Home > ILE Home > Th. List > mulcomli | Unicode version | ||
| Description: Commutative law for multiplication. (Contributed by NM, 23-Nov-1994.) |
| Ref | Expression |
|---|---|
| axi.1 |
|
| axi.2 |
|
| mulcomli.3 |
|
| Ref | Expression |
|---|---|
| mulcomli |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | axi.2 |
. . 3
| |
| 2 | axi.1 |
. . 3
| |
| 3 | 1, 2 | mulcomi 8333 |
. 2
|
| 4 | mulcomli.3 |
. 2
| |
| 5 | 3, 4 | eqtri 2259 |
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-5 1500 ax-gen 1502 ax-4 1563 ax-17 1579 ax-ext 2220 ax-mulcom 8281 |
| This proof depends on definitions: df-bi 117 df-cleq 2231 |
| This theorem is used by: 2t3e6 9465 2t4e8 9468 nummul2c 9836 halfthird 9929 5recm6rec 9930 sq4e2t8 11089 cos2bnd 12546 dec5nprm 13216 karatsuba 13233 2exp6 13236 2exp8 13238 2exp11 13239 2exp16 13240 13prm 13253 17prm 13254 19prm 13255 23prm 13256 43prm 13259 83prm 13260 139prm 13261 163prm 13262 317prm 13263 631prm 13264 1259lem1 13265 1259lem2 13266 1259lem3 13267 1259lem4 13268 1259lem5 13269 1259prm 13270 log2ublem3 16184 log2ublog2 16185 bclbnd 16268 bpos1lem 16270 bposlem4 16275 bposlem5 16276 bposlem8 16279 2lgslem3a 16378 2lgsoddprmlem3c 16394 2lgsoddprmlem3d 16395 ex-exp 16907 ex-fac 16908 |
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