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Mirrors > Home > MPE Home > Th. List > xpeq1i | Structured version Visualization version GIF version |
Description: Equality inference for Cartesian product. (Contributed by NM, 21-Dec-2008.) |
Ref | Expression |
---|---|
xpeq1i.1 | ⊢ 𝐴 = 𝐵 |
Ref | Expression |
---|---|
xpeq1i | ⊢ (𝐴 × 𝐶) = (𝐵 × 𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | xpeq1i.1 | . 2 ⊢ 𝐴 = 𝐵 | |
2 | xpeq1 5052 | . 2 ⊢ (𝐴 = 𝐵 → (𝐴 × 𝐶) = (𝐵 × 𝐶)) | |
3 | 1, 2 | ax-mp 5 | 1 ⊢ (𝐴 × 𝐶) = (𝐵 × 𝐶) |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1475 × cxp 5036 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-opab 4644 df-xp 5044 |
This theorem is referenced by: iunxpconst 5098 xpindi 5177 difxp2 5479 resdmres 5543 curry2 7159 mapsnconst 7789 mapsncnv 7790 cda1dif 8881 cdaassen 8887 infcda1 8898 geomulcvg 14446 hofcl 16722 evlsval 19340 matvsca2 20053 ovoliunnul 23082 vitalilem5 23187 lgam1 24590 finxp2o 32412 finxp3o 32413 poimirlem3 32582 poimirlem5 32584 poimirlem10 32589 poimirlem22 32601 poimirlem23 32602 mendvscafval 36779 binomcxplemnn0 37570 xpprsng 41903 |
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