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| Mirrors > Home > MPE Home > Th. List > sbcbii | Structured version Visualization version GIF version | ||
| Description: Formula-building inference for class substitution. (Contributed by NM, 11-Nov-2005.) |
| Ref | Expression |
|---|---|
| sbcbii.1 | ⊢ (𝜑 ↔ 𝜓) |
| Ref | Expression |
|---|---|
| sbcbii | ⊢ ([𝐴 / 𝑥]𝜑 ↔ [𝐴 / 𝑥]𝜓) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sbcbii.1 | . . . 4 ⊢ (𝜑 ↔ 𝜓) | |
| 2 | 1 | a1i 11 | . . 3 ⊢ (⊤ → (𝜑 ↔ 𝜓)) |
| 3 | 2 | sbcbidv 3797 | . 2 ⊢ (⊤ → ([𝐴 / 𝑥]𝜑 ↔ [𝐴 / 𝑥]𝜓)) |
| 4 | 3 | mptru 1577 | 1 ⊢ ([𝐴 / 𝑥]𝜑 ↔ [𝐴 / 𝑥]𝜓) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: ↔ wb 209 ⊤wtru 1571 [wsbc 3742 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-tru 1573 df-ex 1813 df-sb 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-sbc 3743 |
| This theorem is used by: eqsbc2 3805 sbc3an 3806 sbccom 3822 sbcrext 3824 sbcabel 3829 csbcow 3866 csbco 3867 sbcnel12g 4375 sbcne12 4376 csbcom 4381 csbnestgfw 4383 csbnestgf 4388 sbccsb 4397 sbccsb2 4398 csbab 4401 2nreu 4405 sbcssg 4480 sbcop 5464 sbcrel 5763 sbcfung 6586 sbcfungOLD 6587 tfinds2 7902 f1od2 8138 frpoins3xpg 8187 frpoins3xp3g 8188 mpoxopovel 8268 bnj62 35434 bnj89 35435 bnj156 35442 bnj524 35451 bnj610 35461 bnj919 35481 bnj976 35491 bnj110 35571 bnj91 35574 bnj92 35575 bnj106 35581 bnj121 35583 bnj124 35584 bnj125 35585 bnj126 35586 bnj130 35587 bnj154 35591 bnj155 35592 bnj153 35593 bnj207 35594 bnj523 35600 bnj526 35601 bnj539 35604 bnj540 35605 bnj581 35621 bnj591 35624 bnj609 35630 bnj611 35631 bnj934 35648 bnj1000 35654 bnj984 35665 bnj985v 35666 bnj985 35667 bnj1040 35685 bnj1123 35699 bnj1452 35765 bnj1463 35768 sbcalf 39249 sbcexf 39250 sbccom2lem 39259 sbccom2 39260 sbccom2f 39261 sbccom2fi 39262 csbcom2fi 39263 rspcsbnea 43384 2sbcrex 43999 sbcrot3 44002 sbcrot5 44003 2rexfrabdioph 44007 3rexfrabdioph 44008 4rexfrabdioph 44009 6rexfrabdioph 44010 7rexfrabdioph 44011 rmydioph 44225 expdiophlem2 44233 sbcheg 44982 sbc3or 45717 trsbc 45725 onfrALTlem5 45727 eqsbc2VD 46024 sbcoreleleqVD 46043 onfrALTlem5VD 46069 ich2exprop 48768 |
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