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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 8338 |
. 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 8286 |
| This proof depends on definitions: df-bi 117 df-cleq 2231 |
| This theorem is used by: 2t3e6 9471 2t4e8 9474 nummul2c 9842 halfthird 9935 5recm6rec 9936 sq4e2t8 11095 cos2bnd 12552 dec5nprm 13222 karatsuba 13239 2exp6 13242 2exp8 13244 2exp11 13245 2exp16 13246 13prm 13259 17prm 13260 19prm 13261 23prm 13262 43prm 13265 83prm 13266 139prm 13267 163prm 13268 317prm 13269 631prm 13270 1259lem1 13271 1259lem2 13272 1259lem3 13273 1259lem4 13274 1259lem5 13275 1259prm 13276 log2ublem3 16223 log2ublog2 16224 bclbnd 16307 bpos1lem 16309 bposlem4 16314 bposlem5 16315 bposlem8 16318 2lgslem3a 16417 2lgsoddprmlem3c 16433 2lgsoddprmlem3d 16434 ex-exp 16946 ex-fac 16947 |
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