Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > xpex | Unicode version |
Description: The cross product of two sets is a set. Proposition 6.2 of [TakeutiZaring] p. 23. (Contributed by NM, 14-Aug-1994.) |
Ref | Expression |
---|---|
xpex.1 | |
xpex.2 |
Ref | Expression |
---|---|
xpex |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | xpex.1 | . 2 | |
2 | xpex.2 | . 2 | |
3 | xpexg 4712 | . 2 | |
4 | 1, 2, 3 | mp2an 423 | 1 |
Colors of variables: wff set class |
Syntax hints: wcel 2135 cvv 2721 cxp 4596 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-13 2137 ax-14 2138 ax-ext 2146 ax-sep 4094 ax-pow 4147 ax-pr 4181 ax-un 4405 |
This theorem depends on definitions: df-bi 116 df-3an 969 df-tru 1345 df-nf 1448 df-sb 1750 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-rex 2448 df-v 2723 df-un 3115 df-in 3117 df-ss 3124 df-pw 3555 df-sn 3576 df-pr 3577 df-op 3579 df-uni 3784 df-opab 4038 df-xp 4604 |
This theorem is referenced by: oprabex 6088 oprabex3 6089 fnpm 6613 mapsnf1o2 6653 xpsnen 6778 endisj 6781 xpcomen 6784 xpassen 6787 xpmapenlem 6806 0ct 7063 exmidomni 7097 exmidfodomrlemim 7148 enqex 7292 nqex 7295 enq0ex 7371 nq0ex 7372 npex 7405 enrex 7669 addvalex 7776 axcnex 7791 ixxex 9826 fxnn0nninf 10363 inftonninf 10366 shftfval 10749 qnumval 12094 qdenval 12095 qnnen 12301 txuni2 12797 txbas 12799 eltx 12800 txcnp 12812 txcnmpt 12814 txrest 12817 txlm 12820 reldvg 13189 |
Copyright terms: Public domain | W3C validator |