| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > xpeq12d | Structured version Visualization version GIF version | ||
| Description: Equality deduction for Cartesian product. (Contributed by NM, 8-Dec-2013.) |
| Ref | Expression |
|---|---|
| xpeq1d.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| xpeq12d.2 | ⊢ (𝜑 → 𝐶 = 𝐷) |
| Ref | Expression |
|---|---|
| xpeq12d | ⊢ (𝜑 → (𝐴 × 𝐶) = (𝐵 × 𝐷)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | xpeq1d.1 | . 2 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | xpeq12d.2 | . 2 ⊢ (𝜑 → 𝐶 = 𝐷) | |
| 3 | xpeq12 5675 | . 2 ⊢ ((𝐴 = 𝐵 ∧ 𝐶 = 𝐷) → (𝐴 × 𝐶) = (𝐵 × 𝐷)) | |
| 4 | 1, 2, 3 | syl2anc 596 | 1 ⊢ (𝜑 → (𝐴 × 𝐶) = (𝐵 × 𝐷)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1569 × cxp 5648 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1812 df-sb 2099 df-clab 2739 df-cleq 2752 df-clel 2835 df-opab 5167 df-xp 5656 |
| This theorem is used by: sqxpeqd 5682 opeliunxp 5717 opeliun2xp 5718 mpomptsx 8075 dmmpossx 8077 fmpox 8078 ovmptssOLD 8105 fparlem3 8127 fparlem4 8128 on2recsov 8680 naddcllem 8688 erssxp 8744 marypha2lem2 9431 ackbij1lem8 10307 hfom 10324 fictb 10325 axcc2lem 10517 axcc2 10518 axdc4lem 10536 fsum2dlem 15941 fsumcom2 15945 ackbijnn 16002 fprod2dlem 16152 fprodcom2 16156 homaval 18211 xpcval 18356 xpchom 18359 xpchom2 18365 1stfval 18370 2ndfval 18373 xpcpropd 18387 evlfval 18396 efmnd 19071 isga 19510 gsumcom2 20194 gsumxp 20195 ablfaclem3 20308 psrval 22228 mamufval 22712 mamudm 22715 mvmulfval 22862 mavmuldm 22870 mavmul0g 22873 txbas 23891 ptbasfi 23905 txindis 23958 tmsxps 24860 metustexhalf 24880 noxpordpred 28344 aciunf1lem 33303 gsumpart 33670 gsumwrd2dccatlem 33684 gsumwrd2dccat 33685 erlval 33865 rlocval 33866 fedgmullem1 34307 fldextrspunlsplem 34351 esum2dlem 34770 lpadval 35354 cvmliftlem15 36149 mexval 36353 mpstval 36386 mclsval 36414 mclsax 36420 mclsppslem 36434 filnetlem4 37261 poimirlem26 38657 poimirlem28 38659 heiborlem3 38840 cnvref4 39375 elrefrels2 39623 refreleq 39626 elcnvrefrels2 39639 dvhfset 42230 dvhset 42231 dibffval 42290 dibfval 42291 hdmap1fval 42946 dmmpossx2 49542 dmrnxp 50041 imasubclem3 50315 imaf1hom 50317 swapf2f1oaALT 50493 fucofvalg 50533 fucofvalne 50540 fucof21 50562 functhinclem1 50672 functhinclem3 50674 functhinclem4 50675 |
| Copyright terms: Public domain | W3C validator |